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A abnormal; abortion; absolute temperature; absorbance; acceptor; accommodation; acetone; acetum; achondroplasia; acid; acidophil, acidophilic; acromion; actin; Actinomyces; activity [radiation]; adenine; adenoma; adenosine; admittance; adrenalin; Adriamycin; adult; age; akinetic; alanine; albino [guinea pig]; albumin; allergologist, allergy; alpha [cell]; alveolar gas; ambulation; ampere; amphetamine; ampicillin; amplitude; anaphylaxis; androsterone; anesthetic; angstrom,
A [band] the dark-staining zone of a striated muscle
A1 aortic first sound; prostatic tumor less than 5% [Jewett staging system]
A-1, 2, 3, 4, 5 anterior cerebral artery segments 1, 2, 3, 4, 5
AI, AII, AIII angiotensin I, II, III
A2 prostatic tumor more than 5% [Jewett staging system]
A2 aortic second sound
a absorptivity; acceleration; accommodation; acidity; activated; ampere; anode; anterior; area; arterial blood; arterial; artery [Lat. arteria]; atto-; autopsy; before [Lat. ante]; thermodynamic activity; total acidity; water [Lat. aqua]
a- atto- [10-18]
a sample y intercept of straight line
a see alpha
AA abampere; abdominal aorta; acetabular anteversion; acetic acid; achievement age; active alcoholic; active assistive [range of motion]; active avoidance; acupuncture analgesia; acute appendicitis; adenine arabinoside; adenylic acid; adjuvant arthritis; adrenal androgen; adrenocortical autoantibody; African American; aggregated albumin; [bacterial] aggregative adherence; agranulocytic angina; alcohol abuse; Alcoholics Anonymous; allergic alveolitis; alopecia areata; alveolo-arterial; aminoacetone; amino acid; aminoacyl; amyloid A; anaplastic astrocytoma; anti-arrhythmic agent; anticipatory avoidance; antigen aerosol; aortic amplitude; aortic aneurysm; aortic arch; aplastic anemia; arachidonic acid; arteries; ascending aorta; atlanto-axial; atomic absorption; Australia antigen; autoanalyzer; automobile accident; axonal arborization
2AA 2-aminoanthracene
A&A aid and attendance; awake and aware
A-a alveolar-arterial; alveolar-atrial
aA abampere
aa amino acid; arteries [Lat. arteriae]
AAA abdominal aortic aneurysm/aneurysmectomy; acne-associated arthritis; acquired aplastic anemia; acute anxiety attack; alacrimia-achalasia-addisonianism [syndrome]; American Academy of Addictionology; American Academy of Allergy; American Association of Anatomists; androgenic anabolic agent; aneurysm of ascending aorta; angiography of abdominal aorta; Area Agency on Aging; aromatic amino acid; arrest after arrival
AAAD aromatic amino acid decarboxylase
AA/AD alcohol abuse/alcohol dependence
AAAE amino acid activating enzyme
AAAHC Accreditation Association for Ambulatory Health Care
AAAHE American Association for the Advancement of Health Education
AAAI American Academy of Allergy and Immunology; American Association of Artificial Intelligence
AAALAC American Association for Accreditation of Laboratory Animal Care
AAAM Association for the Advancement of Automotive Medicine
AAAS American Association for the Advancement of Science
AAASPS African-American Antiplatelet Stroke Prevention Study
AAAV avian adeno-associated virus
AAB American Association of Bioanalysts; aminoazobenzene
AABB American Association of Blood Banks; axis-aligned bounding boxes
AABCC alertness (consciousness), airway, breathing, circulation, cervical spine
AABS automobile accident, broadside
AABV Ascogaster argentifrons bracovirus
AAC antibiotic-associated [pseudomembranous] colitis; antimicrobial agent--induced colitis; augmentative and alternative communication
AACA acylaminocephalosporanic acid
6¢AAC-2²APH 6¢-acetyltransferase-2²-phosphotransferase
AACC American Association for Clinical Chemistry
AACCN American Association of Critical Care Nurses
AACD aging-associated cognitive decline
AACE acute acquired comitant esotropia
AACEM Association of Academic Chairs in Emergency Medicine
AACG acute angle closure glaucoma
AACHP American Association for Comprehensive Health Planning
AACIA American Association for Clinical Immunology and Allergy
AACN American Association of Colleges of Nursing; American Association of Critical-Care Nurses
AACOM American Association of Colleges of Osteopathic Medicine
AACP American Academy of Cerebral Palsy; American Association of Colleges of Pharmacy
AACPDM American Academy for Cerebral Palsy and Developmental Medicine
AACS American Academy of Cosmetic Surgery
AACSH adrenal androgen corticotropic stimulating hormone
AACT American Academy of Clinical Toxicology
AACVPR American Association of Cardiovascular and Pulmonary Rehabilitation
AAD acute agitated delirium; acute aortic dissection; alcohol abuse or dependence; alloxazine adenine dinucleotide; alpha-1-antitrypsin deficiency; American Academy of Dermatology; antiarrhythmic drug; antibiotic-associated diarrhea; aromatic acid decarboxylase; average absolute deviation
7-AAD 7-amino-actinomycin D
AADC amino acid decarboxylase; L-aromatic amino acid decarboxylase
AADE American Association of Dental Editors; American Association of Dental Examiners
AADGP American Academy of Dental Group Practice
AADH alopecia-anosmia-deafness-hypogonadism [syndrome]
(A-a)DN2 alveolo-arterial nitrogen tension difference
AaDNV Aedes aegypti densovirus
AADO2, (a-A) DO2 arterio-alveolar oxygen tension difference
AADP American Academy of Denture Prosthetics; amyloid A-degrading protease
AADPA American Academy of Dental Practice Administration
AADR American Academy of Dental Radiology
AADS American Academy of Dental Schools
AAE active assistive exercise; acute allergic encephalitis; American Association of Endodontists; annuloaortic ectasia
AAEE American Association of Electromyography and Electrodiagnosis
AAEM American Academy of Emergency Medicine; American Academy of Environmental Medicine; American Association of Electrodiagnostic Medicine
AAEV Aedes aegypti entomopoxvirus
AA ex active assistive exercise
AAF acetylaminofluorene; aggregative adherence fimbriae; aortic arch flush; ascorbic acid factor
2-AAF N-2-fluorenylacetamide
AAFP American Academy of Family Physicians; American Academy of Family Practice
AAFPRS American Academy of Facial Plastic and Reconstructive Surgery
AAFT amplitude-adjusted Fourier transform
AAG 3-alkaladenine deoxyribonucleic acid glycosylase; allergic angiitis and granulomatosis; alpha-1-acid glycoprotein; alveolar arterial gradient; autoantigen
17AAG 17-allylamino-17-demethoxygeldanamycin
AAGL American Academy of Gynecologic Laparoscopists
AAGP American Academy of General Practice; American Association for Geriatric Psychiatry
AAH Academy of Architecture for Health
AAHA American Academy of Hospital Attorneys; American Association of Homes for the Aging
AAHC American Academy of Healthcare Consultants; American Accreditation HealthCare Commission; Association of Academic Health Centers
AAHD American Association of Hospital Dentists
AAHE Association for the Advancement of Health Education
AAHP American Association of Health Plans
AAHPER American Association for Health, Physical Education, and Recreation
AAHRPP Association for the Accreditation of Human Research Protection Programs
AAHS American Association for Hand Surgery
AAHSL Association of Academic Health Sciences Libraries
AAHSLD Association of Academic Health Sciences Library Directors
AAI acute alveolar injury; Adolescent Alienation Index; American Association of Immunologists; atrial inhibited [pacemaker]
AAIB alpha-1-aminoisobutyrate
AAID American Academy of Implant Dentures
AAIN American Association of Industrial Nurses
AAK allo-activated killer
AAL ambient air level; anterior axillary line
AALAC American Association for Laboratory Animal Care
AALAS American Association of Laboratory Animal Science
AALib amino acid library
AALL American Association for Labor Legislation
AALNC American Association of Legal Nurse Consultants
AAM acute aseptic meningitis; American Academy of Microbiology; amino acid mixture
AAm acrylamide
AAMA American Academy of Medical Administrators; American Association of Medical Assistants
AAMC American Association of Medical Clinics; Association of American Medical Colleges
AAMD American Academy of Medical Directors; American Association of Mental Deficiency
AAME acetylarginine methyl ester
AAMFT American Association for Marriage and Family Therapy
AAMI Association for the Advancement of Medical Instrumentation
AAMIH American Association for Maternal and Infant Health
AAMMC American Association of Medical Milk Commissioners
AAMP American Academy of Maxillofacial Prosthetics; American Academy of Medical Prevention
AAMR American Academy of Mental Retardation
AAMRL American Association of Medical Record Librarians
AAMRS automated ambulatory medical record system
AAMS acute aseptic meningitis syndrome
AAMSI American Association for Medical Systems and Informatics
AAMT American Association for Medical Transcription
AAMU 5-acetylamino-6-amino-methyluracil
AAN AIDS-associated nephropathy; alpha-amino nitrogen; American Academy of Neurology; American Academy of Nursing; American Academy of Nutrition; American Association of Neuropathologists; amino acid nitrogen; analgesic-associated nephropathy; attending's admission notes
AANA American Association of Nurse Anesthetists
AANE American Association of Nurse Executives
AANM American Association of Nurse-Midwives
AANPI American Association of Nurses Practicing Independently
AAO American Academy of Ophthalmology; American Academy of Optometry; American Academy of Osteopathy; American Academy of Otolaryngology; American Association of Ophthalmologists; American Association of Orthodontists; amino acid oxidase; ascending aorta; awake, alert, and oriented
AAo ascending aorta
A-a O2 alveolar-arterial oxygen gradient; alveolo-arterial oxygen tension
AAOC antacid of choice
AAofA Ambulance Association of America
AAOHN American Association of Occupational Health Nurses
AAOM American Academy of Oral Medicine
AAOMS American Association of Oral and Maxillofacial Surgery
AAOO American Academy of Ophthalmology and Otolaryngology
AAOP American Academy of Oral Pathology
AAOPP American Association of Osteopathic Postgraduate Physicians
AAOS American Academy of Orthopedic Surgeons; American Association of Osteopathic Specialists
AAP acute abdominal pain; acute appendicitis; air at atmospheric pressure; American Academy of Pediatrics; American Academy of Pedodontics; American Academy of Periodontology; American Academy of Psychoanalysts; American Academy of Psychotherapists; American Association of Pathologists; Association for the Advancement of Psychoanalysis; Association for the Advancement of Psychotherapy; Association of Academic Physiatrists; Association of American Physicians
AAPA American Academy of Physician Assistants; American Association of Pathologist Assistants
AAPB American Association of Pathologists and Bacteriologists
AAPC antibiotic-associated pseudomembranous colitis; average annual percent change
AAPCC adjusted annual per capita cost; adjusted average per capita costs; American Association of Poison Control Centers
AaPCO2, (A-a)PCO2 alveolo-arterial carbon dioxide tension difference
AAPF anti-arteriosclerosis polysaccharide factor
AAPH 2,2¢-azobis-(2-amidinopropane) hydrochloride
AAPHD American Association of Public Health Dentists
AAPHP American Association of Public Health Physicians
AAPL American Academy of Psychiatry and the Law
AAPM American Association of Physicists in Medicine
AAPMC antibiotic-associated pseudomembranous colitis
AAPM&R American Academy of Physical Medicine and Rehabilitation
AaPO2, (A-a) PO2 alveolo-arterial oxygen tension difference
AAPP American Academy on Physician and Patient
AAPPO American Association of Preferred Provider Organizations
AAPS American Association of Pharmaceutical Scientists; American Association of Plastic Surgeons; Arizona Articulation Proficiency Scale; Association of American Physicians and Surgeons
AAPT Adolescent Alcohol Prevention Trial
AAR active avoidance reaction; acute articular rheumatism; antigen-antiglobulin reaction
aar against all risks
AARC American Association for Respiratory Care
AARE automobile accident, rear end
AARNet Australian Academic and Research Network
AAROM active assertive range of motion; active-assisted range of motion
AARP American Association of Retired Persons
AART American Association for Rehabilitation Therapy; American Association for Respiratory Therapy
AAS Aarskog-Scott [syndrome]; acid aspiration syndrome; alcoholic abstinence syndrome; American Academy of Sanitarians; American Analgesia Society; aneurysm of atrial septum; anthrax antiserum; aortic arch syndrome; atomic absorption spectrophotometry
AASD American Academy of Stress Disorders
aa seq amino acid sequence
AASH adrenal androgen stimulating hormone; American Association for the Study of Headache
AASK African American Study of Kidney Disease and Hypertension Pilot Study
AASP acute atrophic spinal paralysis; American Association of Senior Physicians; ascending aorta synchronized pulsation
AASS American Association for Social Security
AAST American Association for the Surgery of Trauma
AAT Aachen Aphasia Test; academic aptitude test; Accolate Asthma Trial; alanine aminotransferase; alkylating agent therapy; alpha-1-antitrypsin; atrial triggered [pacemaker]; auditory apperception test; automatic atrial tachycardia
A1AT a1-antitrypsin
a1AT a1-antitrypsin
AATB American Association of Tissue Banks
AATS American Association for Thoracic Surgery
AAU acute anterior uveitis
AAUT actual amount of use test
AAV adeno-associated virus
AaV Acherontia atropas virus; Allomyces arbuscula virus
AAVMC Association of American Veterinary Medical Colleges
AAVP American Association of Veterinary Parasitologists
AAW anterior aortic wall
AB abdominal; able body; abnormal; abortion; Ace bandage; active bilaterally; aid to the blind; airbag; alcian blue; alertness behavior; antibiotic; antibody; antigen binding; apex beat; asbestos body; asthmatic bronchitis; axiobuccal; Bachelor of Arts [Lat. Artium Baccalaureus]; blood group AB
A/B acid-base ratio
A&B apnea and bradycardia
A>B air greater than bone [conduction]
Ab abortion; antibiotic; antibody; antivenom
Ab amount in body
aB azure B
ab aberration; abortion; antibody; from [Lat.]
3AB 3-aminobenzamide
ABA abscissic acid; allergic bronchopulmonary aspergillosis; American Board of Anesthesiologists; American Burn Association; antibacterial activity; arrest before arrival; autonomic blocking agent
ABACAS Adjunctive Balloon Angioplasty Following Coronary Atherectomy Study
AB/AM antibiotic/antimycotic
ABAT American Board of Applied Toxicology
ABAV Abadina virus
ABB Albright-Butler-Bloomberg [syndrome]; American Board of Bioanalysis
ABBI advanced breast biopsy instrument
ABBQ AIDS Beliefs and Behavior Questionnaire
abbr abbreviation, abbreviated
ABC abacavir; absolute basophil count; absolute bone conduction; acalculous biliary colic; acid balance control; aconite-belladonna-chloroform; adenosine triphosphate [ATP] binding cassette; airway, breathing, and circulation; alignment, blue, calcium [synovial fluid pearls in gout and pseudogout]; Alpha Beta Canadian [trial]; alternative birth center; alum, blood, and charcoal [purification and deodorizing method]; alum, blood, and clay [sludge deodorizing method]; American Blood Commission; aneurysmal bone cyst; antigen-binding capacity; antigen-binding cell; apnea, bradycardia, cyanosis; aspiration biopsy cytology; assessment of basic competency; atomic, biological, and chemical [warfare]; axiobuccocervical; autism behavior checklist; avidin-biotin peroxidase complex
A&BC air and bone conduction
ABCA1 ATP-binding cassette A1
ABCC Atomic Bomb Casualty Commission
ABCD airway, breathing, circulation, differential diagnosis (or defibrillate) [in cardiopulmonary resuscitation]; amphotericin B colloidal dispersion; appropriate blood pressure control in diabetes; asymmetry, borders are irregular, color variegated, diameter > 6 mm [biopsy in melanoma]
ABCDE airway, breathing, circulation, disability, exposure [in trauma patients]; botulism toxin pentavalent
ABCDES abnormal alignment, bones-periarticular osteoporosis, cartilage-joint space loss, deformities, marginal erosions, soft tissue swelling [x-ray features in rheumatoid arthritis]; adjust medication, bacterial prophylaxis, cervical spine disease, deep vein thrombosis prophylaxis, evaluate extent and activity of disease, stress-dose steroid coverage [preoperative evaluation in rheumatoid diseases]; alignment, bone mineralization, calcifications, distribution of joints, erosions, soft tissue and nails [x-ray features in arthritis]; ankylosis, bone osteoporosis, cartilage destruction, deformity of joints, erosions, swelling of soft tissues [x-ray features of septic arthritis]
ABCIC airway, breathing, circulation, intravenous crystalloid
ABCIL antibody-mediated cell-dependent immunolympholysis
ABC-M chemical-biological aircraft mask
ABCN American Board of Clinical Neuropsychology
ABD abdomen; aged, blind, and disabled; aggressive behavioral disturbance; aortic barodenervated [rat]; automatic border detection; automatic boundary detection; average body dose
Abd, abd abdomen, abdominal; abduct, abduction, abductor
abdom abdomen, abdominal
ABDPH American Board of Dental Public Health
ABE acute bacterial endocarditis; American Board of Endodontics; botulism equine trivalent antitoxin
ABEM American Board of Emergency Medicine
ABEPP American Board of Examiners in Professional Psychology
ABER abducted and externally rotated; auditory brainstem evoked response
aber aberrant
A-b amyloid beta-peptide
ABF aortic blood flow; aortobifemoral
ABG arterial blood gas; axiobucco-gingival
ABGC American Board of Genetic Counseling
ABI ankle/brachial index; atherothrombotic brain infarct
ABIC Adaptive Behavior Inventory for Children; antibody excess immune complex
ABIM American Board of Internal Medicine
ABIMCE American Board of Internal Medicine certifying examination
ABIT assertive behavior inventory tool
ABK aphakic bullous keratopathy
ABL Abelson proto-oncogene; abetalipoproteinemia; acceptable blood loss; acute basophilic leukemia; African Burkitt lymphoma; Albright-Butler-Lightwood [syndrome]; allograft-bound lymphocyte; angioblastic lymphadenopathy; antigen-binding lymphocyte; Army Biological Laboratory; automated biological laboratory; axiobuccolingual
Abl ablation
ABLB alternate binaural loudness balance
ABLC amphotericin B lipid complex
ABLES Adult Blood Lead Epidemiology and Surveillance
ABM abamectin; adjusted body mass; alveolar basement membrane; autologous bone marrow
ABMG American Board of Medical Genetics
ABMI autologous bone marrow infusion
AbMLV Abelson murine leukemia virus
ABMM American Board of Medical Management
ABMS American Board of Medical Specialties
ABMT American Board of Medical Toxicology; autologous bone marrow transplantation
ABMV Above Maiden virus; Abu Mina virus
AbMV Abutilon mosaic virus
AbN antibody nitrogen
Abn, abn abnormal; abnormality(ies)
ABNMP alpha-benzyl-N-methyl phenethylamine
ABNO anatomic abnormality [UMLS]
abnor abnormal
ABO abortion; absent bed occupancy; American Board of Orthodontists; blood group system consisting of groups A, AB, B, and O
ABOHN American Board for Occupational Health Nurses
ABOMS American Board of Oral and Maxillofacial Surgery
ABOP American Board of Oral Pathology
Abor, abor abortion
ABOS American Board of Orthopaedic Surgery
ABOVE Acute Bleeding Oesophageal Variceal Episodes [study]
ABP actin-binding protein; acute biliary pancreatitis; ambulatory blood pressure; American Board of Pedodontics; American Board of Periodontology; American Board of Prosthodontists; aminobiphenyl; androgen-binding protein; antigen-binding protein; arterial blood pressure; automatic systolic blood pressure measurement; avidin-biotin peroxidase
aBP arterial blood pressure
ABPA actin-binding protein, autosomal form; allergic bronchopulmonary aspergillosis
ABPC antibody-producing cell
ABPE acute bovine pulmonary edema
ABPM ambulatory blood pressure monitoring
ABPM&R American Board of Physical Medicine and Rehabilitation
ABPS American Board of Plastic Surgery
ABR abortus Bang ring [test]; absolute bed rest; American Board of Radiology; arterial baroreflex; auditory brainstem response
ABr agglutination test for brucellosis
Abr, Abras abrasion
ABRV Abras virus; Arbroath virus
ABS abdominal surgery; acidic ammonium bisulfate; acute brain syndrome; Adaptive Behavior Scale; admitting blood sugar; adult bovine serum; aging brain syndrome; alkylbenzene sulfonate; aloin, belladonna, strychnine; American Board of Surgery; amniotic band sequence; amniotic band syndrome; anti-B serum; Antley-Bixler syndrome; arterial blood sample; at bed side; Australian Bureau of Statistics
Abs absorption
abs absent; absolute
AB-SAAP autologous blood selective aortic arch perfusion
absc abscess; abscissa
abs conf absolute configuration
ABSe ascending bladder septum
abs feb while fever is absent
ABSITE American Board of Surgery In-Training Examination
absorp absorption
AbSR abnormal skin reflex
abst, abstr abstract
ABSV Absettarov virus
ABT abstract behavioral type; autologous blood transfusion; lopinavir
abt about
ABU asymptomatic bacteriuria
ABV actinomycin D-bleomycin-vincristine; Agaricus bisporus virus; Aglaonema bacilliform virus; Aransas Bay virus; arthropod-borne virus
AbV Agaricus bisporus virus
ABVD Adriamycin, bleomycin, vinblastine, and dacarbazine
ABW average body weight
ABX abciximab; antibiotics
ABY acid bismuth yeast [medium]
AbYV Abutilon yellow virus
AC abdominal circumference; abdominal compression; ablation catheter; abrupt closure; absorption coefficient; abuse case; acetate; acetylcholine; acidified complement; Acinetobacter calcoaceticus; acromioclavicular; activated charcoal; acupuncture clinic; acute; acute cholecystitis; adenocarcinoma; adenylate cyclase; adherent cell; adrenal cortex; adrenocorticoid; Adriamycin/cyclophosphamide; air chamber; air conditioning; air conduction; alcoholic cirrhosis; alternating current; alveolar crest; ambulatory care; anesthesia circuit; angiocellular; anodal closure; antecubital; anterior chamber; anterior column; anterior commissure; antibiotic concentrate; anticholinergic; anticoagulant; anticomplement; antiphlogistic corticoid; aortic closure; aortic compliance; aortocoronary; arm circumference; ascending colon; assist control [ventilation]; atriocarotid; autocorrelation; axiocervical; hydrogen cyanide [war gas]
A-C acromioclavicular; adult-versus-child; aortocoronary bypass
A/C albumin/coagulin [ratio]; anterior chamber of eye; assist control [ventilation]
A2C apical two-chamber [view]
A4C apical four-chamber [view]
Ac accelerator [globulin]; acetate; acetyl; actinium; anticoagulant, anticoagulation; aortic closure; arabinosyl cytosine
aC abcoulomb; arabinosyl cytosine
ac acceleration; acetyl; acid; acromioclavicular; acute; alternating current; antecubital; anterior chamber; atrial contraction; axiocervical
5-AC azacitidine
ACA abnormal coronary artery; acrodermatitis chronica atrophicans; acute cerebellar ataxia; adenocarcinoma; adult child of an alcoholic; American Chiropractic Association; American College of Allergists; American College of Anesthesiologists; American College of Angiology; American College of Apothecaries; American Council on Alcoholism; American Counseling Association; aminocephalosporanic acid; ammonia, copper, and acetate; amyotrophic choreo-acanthocytosis; anisotropic conductive adhesive; anterior cerebral artery; anterior communicating aneurysm [or artery]; anticapsular antibody; anticardiolipin antibody; anticentromere antibody; anticollagen antibody; anticomplement activity; anticytoplasmic antibody; arrhythmic cardiac arrest; automatic chemical agent alarm; Automatic Clinical Analyzer
AC/A accommodative convergence/accommodation [ratio]
ACAAI American College of Allergy, Asthma and Immunology
ACAC acetyl-coenzyme A cocarboxylase; activated charcoal artificial cell
ACACN American Council of Applied Clinical Nutrition
ACACT acyl-coenzyme A:cholesterol acyl transferase
ACAD asymptomatic coronary artery disease; atherosclerotic carotid artery disease; Azithromycin in Coronary Artery Disease [study]
Acad academy
ACADEMIC Azithromycin in Coronary Artery Disease Elimination of Myocardial Infection with Chlamydia [study]
A-CAH autoimmune chronic active hepatitis
ACAM American College for Advancement in Medicine
ACAO acyl coenzyme A oxidase
ACAPS Asymptomatic Coronary Artery Plaque Study; Asymptomatic Coronary Artery Progression Study
ACAS adaptive cluster analysis system
ACAT acetyl coenzyme A acetyltransferase; automated computerized axial tomography
ACAV Acara virus; American Committee on Arthropod-Borne Viruses
ACB antibody-coated bacteria; aortocoronary bypass; arterialized capillary blood; asymptomatic carotid bruit
ACBaE air contrast barium enema
ACBC aminocyclobutanecarboxylic acid
AC/BC air conduction/bone conduction [time ratio]
ACBE air contrast barium enema
ACBG aortocoronary bypass graft
ACBS Asymptomatic Cervical Bruit Study
ACC accommodation; acetyl coenzyme A carboxylase; acinic cell carcinoma; actinomycin C; acute care center; adenoid cystic carcinoma; administrative control center; adrenocortical carcinoma; agenesis of corpus callosum; alveolar cell carcinoma; ambulatory care center; American College of Cardiology; anodal closure contraction; anterior cingulate cortex; antitoxin-containing cell; aplasia cutis congenita; articular chondrocalcinosis; automated cell count; automated cell counter
Acc acceleration; adenoid cystic carcinoma
acc acceleration, accelerator; accident; accommodation
ACCA Advisory Committee on Casualty Assessment [Canada]; American College of Cardiovascular Administrators
ACC/AHA American College of Cardiology/American Hospital Association [Task Force]
ACCE American College of Clinical Engineering
ACCEPT Accupril Canadian Clinical Evaluation and Patient Teaching; American College of Cardiology Electrocardiogram Proficiency Test; American College of Cardiology Evaluation of Preventive Therapies [study]
ACCESS A Comparison of Percutaneous Entry Sites for Coronary Angioplasty; Acute Candesartan Cilexetil Evaluation in Stroke Survivors; Ambulatory Care Clinic Effectiveness Systems Study; Atorvastatin Comparative Cholesterol Efficacy and Safety Study; automated cervical cell screening system
ACCH Association for the Care of Children's Health
AcCh acetylcholine
AcChR acetylcholine receptor
AcCHS acetylcholinesterase
accid accident, accidental
acc insuff accommodation insufficiency
ACCISM Association of City and County Information System Managers
ACCL, Accl anodal closure clonus
ACCME Accreditation Council for Continuing Medical Education
ACCN accession number
AcCoA acetyl coenzyme A
accom accommodation
ACCP American College of Chest Physicians; American College of Clinical Pharmacology; American College of Clinical Pharmacy
AcCPV Arctia caja cypovirus
ACCR amylase-creatinine clearance ratio
ACCS American-Canadian Cooperative Study
ACCT Amlodipine Cardiovascular Community Trial
accum accumulation
accur accurately [Lat. accuratissime]
ACD absolute cardiac dullness; absolute claudication distance; acid-citrate-dextrose [solution]; actinomycin D; active compression-decompression; adult celiac disease; advanced care directive; allergic contact dermatitis; alopecia-contractures-dwarfism [syndrome]; American College of Dentists; ammonium citrate dextrose; angiokeratoma corporis diffusum; annihilation coincidence detection; anterior chamber depth; anterior chest diameter; anticoagulant citrate dextrose; anticonvulsant drug; area of cardiac dullness; Available Chemicals Directory
AcDB A C. elegans Database [gene expression]
AC-DC, ac/dc alternating current or direct current
ACD-CPR active compression-decompression cardiopulmonary resuscitation
ACD-PCR active compression-decompression post-compression remodeling
ACDV Acado virus
ACE acetonitrile; acetylcholine esterase; acute cerebral encephalopathy; acute coronary event; adrenocortical extract; Adverse Childhood Experience [study]; alcohol, chloroform, and ether; analytic continuum electrostatics; angiotensin-converting enzyme; annealed competition of experts [algorithm]; Aspirin and Carotid Endarterectomy [trial]
ace acentric; acetone
ACED anhidrotic congenital ectodermal dysplasia
AceDB A C. elegans Database [gene expression]
ACEDS angiotensin-converting enzyme dysfunction syndrome
ACEH acid cholesterol ester hydrolase
ACEI angiotensin-converting enzyme inhibitor
ACEIT applied current electrical impedance tomography
ACEP American College of Emergency Physicians
ACES Alternans Cardiac Electrical Safety [study]; Azithromycin and Coronary Events Study
AcEst acetyl esterase
ACET Advisory Committee for the Elimination of Tuberculosis; Azmacort Cost Effectiveness Trial
ACET, acet acetone; vinegar [Lat. acetum]
acetab acetabular, acetabulum
acetyl-CoA acetyl coenzyme A
ACEV Anomala cuprea entomopoxvirus
ACF accessory clinical findings; active case finding; acute care facility; advanced communication function or facility; anisotropic conductive film [computer-assisted radiology]; anterior cervical fusion; anterior cranial fossa; area correction factor; asymmetric crying facies; autocorrelation function
ACf autocorrelation function
ACFAO American College of Foot and Ankle Orthopedics and Medicine
ACFAS American College of Foot and Ankle Surgeons
ACG accelerator globulin; adjusted clinical group; alternative care grant; ambulatory care group; American College of Gastroenterology; angiocardiography, angiocardiogram; aortocoronary graft; apexcardiogram
AC-G, AcG, ac-g accelerator globulin
ACGIH American Conference of Governmental Industrial Hygienists
ACGME Accreditation Council for Graduate Medical Education
ACGP American College of General Practitioners
ACGPOMS American College of General Practitioners in Osteopathic Medicine and Surgery
ACGT antibody-coated grid technique
ACH acetylcholine; achalasia; active chronic hepatitis; adrenocortical hormone; air change per hour; amyotrophic cerebellar hypoplasia; arm girth, chest depth, and hip width [nutritional index]
ACh acetylcholine
ACHA American College Health Association; American College of Hospital Administrators
AChA anterior choroidal artery
ACHD atherosclerotic coronary heart disease
ACHE American College of Healthcare Executives; American Council for Headache Education
AChE acetylcholinesterase
ACHIEVE Accupril Congestive Heart Failure Investigation and Economic Variable Evaluation
ACHOO autosomal dominant compelling helio-ophthalmic outburst [syndrome]
ACHPER Australian Council for Health, Physical Education and Recreation [survey]
ACHPR Agency for Health Care Policy and Research
AChR acetylcholine receptor
AChRAb acetylcholine receptor antibody
AChRP acetylcholine receptor protein
ACHS Australian Council on Healthcare Standards
AcHV acciptrid herpesvirus
ACI acceleration index; acoustic comfort index; acute cardiac ischemia; acute coronary infarction; acute coronary insufficiency; adenylate cyclase inhibitor; adrenocortical insufficiency; anticlonus index
ACID Arithmetic, Coding, Information, and Digit Span
ACIF acute care index of functions; anterior cervical interbody fusion; anticomplement immunofluorescence
AciHV Acipenserin herpesvirus
AcINH acid labile isonicotinic acid hydrazide
ACIP acute canine idiopathic polyneuropathy; Advisory Committee on Immunization Practices [CDC]; ambulatory care incentive payment; Asymptomatic Cardiac Ischemia Pilot Study
ACIR Australian Clinical Immunisation Register; Automotive Crash Injury Research
ACIS ambulatory care information system; automated clinical information system
ACIT Asymptomatic Cardiac Ischemia Trial
ACI-TIPI acute cardiac ischemia-time insensitive predictive instrument
AcK francium [actinium K]
ACKD acquired cystic kidney disease
ACL access control list; Achievement Check List; acromegaloid features, cutis verticis gyrata, corneal leukoma [syndrome]; American cutaneous leishmaniasis; anterior chamber lens; anterior cruciate ligament; Association for Computa-tional Linguistics
ACl aspiryl chloride
aCL anticardiolipin [antibody]
ACLA American Clinical Laboratory Association
ACLC Assessment of Children's Language Comprehension
ACLD Association for Children with Learning Disabilities
ACLE acute cutaneous lupus erythematosus
ACLF adult congregate living facility
ACLI American Council on Life Insurance
ACLM American College of Legal Medicine
ACLPS Academy of Clinical Laboratory Physicians and Scientists
ACLR anterior capsulolabral reconstruction
ACLS acrocallosal syndrome; advanced cardiac life support; Assessment of Children's Language Comprehension
AcLV avian acute leukemia virus
ACM access control matrix; acetaminophen; acute cerebrospinal meningitis; adaptive fuzzy c-means algorithm; Adriamycin, cyclophosphamide, methotrexate; albumin-calcium-magnesium; alcoholic cardiomyopathy; alveolar capillary membrane; anticardiac myosin; Arnold-Chiari malformation; asbestos-containing material; Association of Computing Machinery; automated cardiac flow measurement
ACMC Association of Canadian Medical Colleges
ACMD associate chief medical director
ACME Advisory Council on Medical Education; Angioplasty Compared to Medicine [study]; assessing changes in medical education; Automated Classification of Medical Entities
ACMF arachnoid cyst of the middle fossa
ACMG American College of Medical Genetics
ACMHV avian carcinoma Mill Hill virus
ACMI age-consistent memory impairment; American College of Medical Informatics
ACML atypical chronic myeloid leukemia
AcMNPV Autographa californica multicapsid nucleopolyhedrovirus
ACMP alveolar-capillary membrane permeability
ACMR Advisory Committee on Medical Research
ACMS American Chinese Medical Society
ACMT artificial circus movement tachycardia
ACMV assist-controlled mechanical ventilation
ACN acute conditioned neurosis; Ambulatory Care Network; American College of Neuropsychiatrists; American College of Nutrition
ACNM American College of Nuclear Medicine; American College of Nurse-Midwives
ACNP acute care nurse practitioner; American College of Nuclear Physicians
ACO acute coronary occlusion; alert, cooperative, and oriented; anodal closure odor
ACOA adult children of alcoholics
ACoA anterior communicating artery
ACODENIC Advisory Committee on Dental Electronic Nomenclature, Indexing and Classification
ACOEM American College of Occupational and Environmental Medicine
ACOEP American College of Osteopathic Emergency Physicians
ACOEV Araphia conspersa entomopoxvirus
ACOG American College of Obstetricians and Gynecologists
ACOHA American College of Osteopathic Hospital Administrators
ACO-HNS American Council of Otolaryngology-Head and Neck Surgery
ACOI American College of Osteopathic Internists
ACOM American College of Occupational Medicine; anterior communicating [artery]
AComA anterior communicating artery
ACOMS American College of Oral and Maxillofacial Surgeons
ACOOG American College of Osteopathic Obstetricians and Gynecologists
ACOP American College of Osteopathic Pediatricians; approved code of practice
ACORDE A Consortium on Restorative Dentistry Education
ACOS American College of Osteopathic Surgeons; associate chief of staff
ACOS/AC associate chief of staff for ambulatory care
Acous acoustics, acoustic
ACOX acetyl coenzyme A [CoA] oxidase
ACP accessory conduction pathway; acid phosphatase; acyl carrier protein; American College of Pathologists; American College of Pharmacists; American College of Physicians; American College of Prosthodontists; American College of Psychiatrists; Animal Care Panel; anodal closure picture; aspirin-caffeine-phenacetin; Association for Child Psychiatrists; Association of Clinical Pathologists; Association of Correctional Psychologists; Asymptomatic Cardiac Ischemia Pilot Study; atom class pair
ACPA American Cleft Palate Association
AcPase acid phosphatase
ACPC aminocyclopentane carboxylic [acid]
AC-PC anterior commissure-posterior commissure
ACPE American College of Physician Executives
AC-PH, ac phos acid phosphatase
ACPM American College of Preventive Medicine
ACPP adrenocortical polypeptide; prostate-specific acid phosphatase
ACPS acrocephalopolysyndactyly
ACQUIP Ambulatory Care Quality Improvement Project
ACR abnormally contracting region; absolute catabolic rate; acriflavine; acute-to-chronic ratio; adenomatosis of colon and rectum; adjusted community rate; ambulance call report; American College of Radiology; American College of Rheumatology; anticonstipation regimen; axillary count rate
Acr acrylic
ACRE Appropriateness of Coronary Revascularization [study]
ACRF acute-on-chronic respiratory failure; ambulatory care research facility
ACRM American Congress of Rehabilitation Medicine
ACR/NEMA American College of Radiology/National Electrical Manufacturers' Association [standard for transferring radiologic images]
ACS access control system; acrocallosal syndrome; acrocephalosyndactyly; acute chest syndrome; acute confusional state; acute coronary syndrome; Alcon Closure System; ambulatory care-sensitive [condition]; American Cancer Society; American Chemical Society; American College of Surgeons; anodal closure sound; antireticular cytotoxic serum; aperture current setting; Association of Clinical Scientists; automatic corneal shaper
ACs air changes
ACSA adenylate cyclase-stimulating activity
ACSCEPT Assessment for Carotid Stenosis: Correlation with Endarterectomy Specimen Trial
ACS CPS American Cancer Society Cancer Prevention Studies
ACSE association control service element
ACSF artificial cerebrospinal fluid
aCSF artificial cerebrospinal fluid
AC/SIUG ambulatory care special-interest user group
ACSM American College of Sports Medicine
ACSML arbitration and control state machine logic
ACSP adenylate cyclase-stimulating protein
ACSSuT ampicillin, chloramphenicol, streptomycin, sulfonamides, and tetracyclines
ACST Asymptomatic Carotid Surgery Trial
ACSV aortocoronary saphenous vein
ACSVBG aortocoronary saphenous vein bypass graft
ACT abdominal computed tomography; ablation catheter tip; achievement through counseling and treatment; actin; actinomycin; action class torsion; activated clotting time; adaptive current tomography; advanced coronary treatment; Angioplasty Compliance Trial; anterocolic transposition; antichymotrypsin; anticoagulant therapy; anxiety control training; artemisinin combination therapy [malaria]; Association of Cytogenetic Technologists; asthma care training; atropine coma therapy; Attacking Claudication with Ticlopidine [study]; Australian Capital Territory [heroin trial]
AcT acceleration time
Act activity
act actinomycin; activity, active
ACTA American Cardiology Technologists Association; automatic computerized transverse axial [scanning]
Act-C actinomycin C
ACTC alpha-actin, cardiac muscle
Act-D actinomycin D
ACT/DB Adaptable Clinical Trials Database
ACTe anodal closure tetanus
ACTG AIDS Clinical Trial Group [study]
ACTH adrenocorticotropic hormone
ACTH-LI adrenocorticotropin-like immunoreactivity
ACTHR adrenocorticotropic hormone receptor
ACTHR/MC-2 adrenocorticotropin receptor/melanocortin receptor 2
ACTH-RF adrenocorticotropic hormone releasing factor
ACTION A Coronary Disease Trial Investigating Outcome with Nifedipine GITS; Assisting Carriers Using Telematics Interventions to Meet Older Persons Needs [Ireland]
ACTIS [NLM database] Acquired Immunodeficiency Syndrome [AIDS] Clinical Trials Information Service
activ active, activity
ACTN adrenocorticotropin
ACTOBAT Australasian Clinical Trial of Betamethasone and Thyroid-Releasing Hormone
ACTP adrenocorticotropic polypeptide
ACT/PD actual nursing hours per patient/day
ACTR American Club of Therapeutic Radiologists
ACTS acute cervical traumatic sprain or syndrome; advanced communication technology satellite; advanced computational testing and simulation [toolkit]; American-Canadian Thrombosis Study; American College Testing Services; Auditory Comprehension Test for Sentences
ACTUR Automated Central Tumor Registry
ACTV Acatinga virus; activity [UMLS]
ACU acquired cold urticaria; acute care unit; agar colony-forming unit; ambulatory care unit
ACURP American College of Utilization Review Physicians
ACUTE Analysis of Coronary Ultrasound Thrombolysis Endpoints; Assessment of Cardioversion Utilizing Transesophageal Echocardiography [pilot study]
ACV acute cardiovascular [disease]; acyclovir; assisted controlled ventilation; atrial/carotid/ventricular; autonomic conduction velocity
ACVB aortocoronary venous bypass
ACVD acute cardiovascular disease, atherosclerotic cardiovascular disease
ACx anomalous circumflex [coronary artery]
AD abductor digiti minimi [muscle]; above diaphragm; absorbed dose; acceptable daily intake; accident dispensary; accidental death; acetabular depth; acetate dialysis; active disease; active domain; acute dermatomyositis; addict, addiction; adenoid degeneration [agent]; adjuvant disease; admitting diagnosis; adrenodoxin; adrenostenedione; adult disease; advanced directive; aerosol deposition; affective disorder; after discharge; alcohol dehydrogenase; Aleutian disease; alveolar diffusion; alveolar duct; Alzheimer dementia; Alzheimer disease; analgesic dose; analog device; anodal duration; anterior division; antigenic determinant; appropriate disability; arthritic dose; associate degree; atopic dermatitis; attentional disturbance; Aujeszky disease; autistic disorder; autonomic dysreflexia; autosomal dominant; average deviation; average difference; axiodistal; axis deviation; right ear [Lat. auris dextra; JCAHO unapproved abbreviation]
A/D analog-to-digital
A&D admission and discharge; ascending and descending
Ad adenovirus; adrenal; anisotropic disk
ad add [Lat. adde]; let there be added [up to a specified amount, Lat. addetur]; axiodistal; right ear [Lat. auris dextra]
AD1 Alzheimer disease type I
ADA adenosine deaminase; American Dental Association; American Dermatological Association; American Diabetes Association; American Dietetic Association; Americans with Disabilities Act; anterior descending artery; antideoxyribonucleic acid antibody; approved dietary allowance
ADAA American Dental Assistants Association
ADACS automatic data acquisition and control system
ADAM adduct detection by acylation with 35S-methionine; amniotic deformity, adhesion, mutilation [syndrome]; A disintegrin and A metalloprotease; Amsterdam Duration of Antiretroviral Medication [study]
ADAMHA Alcohol, Drug Abuse, and Mental Health Administration
ADAP American Dental Assistants' Program; Assistant Director of Army Psychiatry
ADAPC alcohol and drug abuse prevention and control
ADAPT American Disabled for Attendant Programs Today [organization]; Association for Drug and Alcohol Prevention and Treatment; Automated Data Analysis and Pattern Recognition Toolkit
ADAPTS acute directional atherectomy prior to stenting
ADAS Alzheimer's Disease Assessment Scale
ADAS-COG cognitive portion of the Alzheimer's Disease Assessment Scale
AdASDiM Adaptive Advisory System for Diabetic Management
ADase adenosine deaminase
ADAU adolescent drug abuse unit
ADB accidental death benefit; archival database
ADC adenylate cyclase; adult day care [facility]; affective disorders clinic; Aid to [Families with] Dependent Children; AIDS-dementia complex; albumin, dextrose, and catalase [medium]; ambulance design criteria; analog-to-digital converter; anodal duration contraction; apparent diffusion coefficient; audio-to-digital conversion; average daily census; axiodistocervical
AdC adenylate cyclase; adrenal cortex
ADCA autosomal dominant cerebellar ataxia
ADCC acute disorder of cerebral circulation; antibody-dependent cell-mediated cytotoxicity
ADCH autosomal dominant cyclic hematopoiesis
AD-CHF acutely decompensated congestive heart failure
ADCMC antibody-dependent complement-mediated cytotoxicity
AdCMVHSV-TK adenovirus carrying the gene for herpes simplex thymidine kinase
ADCP adenosine deaminase complexing protein
AD-CPEO autosomal dominant chronic progressive external ophthalmoplegia
ADCS Argonz del Castillo syndrome
ADCY adenyl cyclase
ADD acceptable daily dose; adduction; adenosine deaminase; Anti-Epileptic Drug Development [program]; attention deficit disorder; auditory discrimination in depth; average daily dose
add addition; adductor, adduction; let there be added [Lat. addatur]
ADDH attention deficit disorder with hyperactivity
ADD/HA attention deficit disorder/hyperactivity
addict addiction, addictive
AdDNV Aceta domestica densovirus
add poll adductor pollicis
ADDS American Digestive Disease Society
ADDU alcohol and drug dependence unit
ADE acute disseminated encephalitis; adaptive delay estimation; advanced large-scale integrated computational environment [ALICE] differencing engine; adverse drug event; antibody-dependent enhancement; apparent digestible energy
Ade adenine
ADEAR Alzheimer Disease Education and Referral [center]
AdeCbl adenosyl cobalamine
ADEE age-dependent epileptic encephalopathy
ADEG Antiarrhythmic Drug Evaluation Group [trial]
ADEM academic department of emergency medicine; acute disseminated encephalomyelitis
AdenCa adenocarcinoma
ADEP Atherosclerotic Disease Evolution by Picotamide [study]
ADEPT Applying Diagnosis, Etiology, Prognosis, and Therapy [program]
adeq adequate
ADF adaptive filter; administrative determination of fault; average duration of failures
ADFVd Apple dimple fruit viroid
AD/FHD acetabular depth/femoral head diameter
ADFN albinism-deafness [syndrome]
ADFR activate, depress, free, repeat [coherence therapy]
ADFS alternative delivery and financing system
AD-FSP autosomal dominant familial spastic paraplegia
ADG ambulatory diagnostic group; atrial diastolic gallop; axiodistogingival
ADH Academy of Dentistry for the Handicapped; adhesion; alcohol dehydrogenase; antidiuretic hormone; arginine dihydrolase; atypical ductal hyperplasia
adh adhesion, adhesive; antidiuretic hormone
ADHA American Dental Hygienists Association
ADH/CA atypical ductal hyperplasia with adjacent ductal cancer
ADHD attention deficit-hyperactivity disorder
ADHDP action-dependent dual heuristic programming
ADI Academy of Dentistry International; acceptable daily intake; AIDS-defining illness; allowable daily intake; alternating direction implicit; alternating directions implicit [method]; artificial diverticulum of the ileum; atlas-dens interval; autism diagnostic interview; average daily intake; axiodistoincisal
adj adjacent; adjoining; adjuvant
ADK adenosine kinase
ADKC atopic dermatitis with keratoconjunctivitis
ADL active digital library; activities of daily living; advanced distributed learning; Amsterdam Depression List; annual dose limit
ADLAR advanced design linear accelerator radiosurgery
ADLC antibody-dependent lymphocyte-mediated cytotoxicity
ad lib as desired [Lat. ad libitum]
ADLS Activities of Daily Living Survey
ADM abductor digiti minimi; add-drop multiplexer; administrative medicine; admission; Adriamycin; Alcohol, Drug Abuse and Mental Health [grant of US Department of Health and Human Services]
AdM adrenal medulla
adm administration; admission; apply [Lat. admove]
Adm Dr admitting doctor
ADME [drug] absorption, distribution, metabolism, and excretion
Admin administration
ADMIRE AMP 579 Delivery for Myocardial Infarction Reduction
ADMIT Arterial Disease Multiple Intervention Trial
AdML adenovirus major late promoter
Adm Ph admitting physician
ADMR average daily metabolic rate
ADMS analysis of disorders of masticatory system; atmospheric dispersion modeling system
ADMX adrenal medullectomy
ADN antideoxyribonuclease; aortic depressor nerve; associate degree in nursing
ad naus to the point of producing nausea [Lat. ad nauseam]
ADN-B antideoxyribonuclease B
ADO active data object; adenosine; adolescent medicine; allele drop-out; axiodisto-occlusal
Ado adenosine
ADOA autosomal dominant ocular albinism
AdoCbl 5¢-adenosylcobalamin
ADOD arthrodentosteodysplasia
AdoDABA adenosyldiaminobutyric acid
AdoHcy S-adenosylhomocysteine
adol adolescence, adolescent
AdoMet S-adenosylmethionine
ADOPT Accupril Decision on Pharmacotherapy [trial]
ADOS autism diagnostic observation scale; autosomal dominant Opitz syndrome
ADOTS affective disorder outpatient telephone screening
Adox oxidized adenosine
ADP adenopathy; adenosine diphosphate; adenovirus death protein; administrative psychiatry; approved drug product; approximate dynamic programming; area diastolic pressure; automatic data processing
AdP adductor pollicis
ADPase adenosine diphosphatase
ADPK autosomal dominant polycystic kidney [disease]
ADPKD autosomal dominant polycystic kidney disease
ADPL average daily patient load
ADPR adenosine diphosphate ribose
ADPRT adenosine diphosphate ribosyltransferase
ADQ abductor digiti quinti; adolescent drinking questionnaire
ADR activation, depression, repetition [in bone remodeling]; adrenalin; adrenals; adrenergic receptor; adrenodoxin reductase; Adriamycin; adverse drug reaction; airway dilation reflex; alternative dispute resolution; arrested development of righting response; ataxia-deafness-retardation [syndrome]
Adr adrenalin; Adriamycin
adr adrenal, adrenalectomy
ADRA1A alpha-1A-adrenergic receptor
ADRA1B beta-1B-adrenergic receptor
ADRAC Adverse Drug Reactions Advisory Committee [Australia]
ADRA1C alpha-1C-adrenergic receptor
ADRA2C alpha-2C-adrenergic receptor
ADRAR alpha-2-adrenergic receptor
ADRBK beta-1-adrenergic receptor kinase
ADRBR adrenergic beta-receptor
ADRC Alzheimer Disease Research Center
ADRDA Alzheimer Disease and Related Disorders Association
ADRP adipose differentiation-related protein; autosomal dominant retinitis pigmentosa
ADRT approximate discrete radon transform
ADS acute death syndrome; acute diarrheal syndrome; adenocarcinoma dataset; Alcohol Dependence Scale; alternative delivery system; anatomical dead space; anonymous donor's sperm; antibody deficiency syndrome; antidiuretic substance; Army Dental Service
ADSD adductor spasmodic dysphonia
ADSL adenylosuccinate lyase; asymmetrical digital single line; asymmetrical digital subscription line
ADSP analog devices digital signal processor
ADSS adenylosuccinate synthetase
ADSTGD Stargardt-like muscular dystrophy
ADSV Arborea virus
ADT Accepted Dental Therapeutics; adenosine triphosphate; admission, discharge, and transfer; agar-gel diffusion test; alternate-day therapy; any, what you desire, thing (a placebo); Alzheimer-type dementia; Auditory Discrimination Test
ADTA American Dental Trade Association
ADTe anodal duration tetanus
ADU alkaline deoxyribonucleic acid unwinding
AD&U acid dissociation and ultrafiltration
ADV adenovirus; adventitia; Aleutian disease virus; Aujeszky disease virus
AdV adenovirus
Adv adenovirus
adv advanced; against [Lat. adversum]
ADVENT antithrombin for deep venous thrombosis
ADVIRC autosomal dominant vitreo-retinochoroidopathy
ADVS activities of daily vision survey
ADW assault with deadly weapon
A5D5W alcohol 5%, dextrose 5%, in water
ADX adrenalectomized; adrenodoxin
AE above-elbow [amputation]; acrodermatitis enteropathica; activation energy; adult erythrocyte; adverse event; after-effect; agarose electrophoresis; air embolism; air entry; alcoholic embryopathy; aminoethyl; anion exchange; anoxic encephalopathy; antiepileptic; antitoxic unit [Ger. Antitoxineinheit]; apoenzyme; aryepiglottic; atherosclerotic encephalopathy; atrial ectopic [heart beat]; avian encephalomyelitis
A&E accident and emergency [department]
A+E accident and emergency [department]; analysis and evaluation
A/E above elbow [amputation]
AEA acquired epileptic aplasia; alcohol, ether, and acetone [solution]
AEB acute erythroblastopenia; avian erythroblastosis
AEC aminoethylcarbazole; ankyloblepharon, ectodermal defects, and cleft lip [syndrome]; at earliest convenience; Atomic Energy Commission; automatic exposure control
AECB acute exacerbation of chronic bronchitis
AECD allergic eczematous contact dermatitis
AECE-6-AZUMP 5-[2-(aminoethyl) carbamyl]-6-azauridine-5¢monophosphate
AECGM ambulatory electrocardiography monitoring
AECS acute exacerbation of chronic sinusitis
AED academic emergency department; antiepileptic drug; antihidrotic ectodermal dysplasia; anxious ego dissolution; automated external defibrillator
AEDP automated external defibrillator pacemaker
AEE Atomic Energy Establishment
AEF allogenic effect factor; amyloid enhancing factor; aorto-enteric fistula
AEFB aerobic endospore-forming bacterium
AEFF effective area
AEFI adverse events following immunization
AEFV acceleration of early flow velocity
AEG acute erosive gastritis; air encephalography, air encephalogram; atrial electrogram
AEGIS Aid for the Elderly in Government Institutions
AEI arbitrary evolution index; atrial emptying index; atrial escape interval
AEL acute erythroleukemia
AELV avian entero-like virus
AEM Academic Emergency Medicine [journal]; ambulatory electrocardiographic monitoring; analytical electron microscopy; ataxia episodica with myokymia; avian encephalomyelitis
AEMG abdominal electromyography
AEMIS Aerospace and Environmental Medicine Information System
AEMK ataxia episodica with myokymia
A-EMT advanced emergency medical technician
AEN anal epithelial neoplasia; aseptic epiphyseal necrosis
AEP acute edematous pancreatitis; artificial endocrine pancreas; auditory evoked potential; average evoked potential
AEq age equivalent
AER abduction/external rotation; acoustic evoked response; acute exertional rhabdomyolysis; agranular endoplasmic reticulum; albumin excretion rate; aldosterone excretion rate; apical ectodermal ridge; auditory evoked response; average electroencephalic response; average evoked response
AERE Atomic Energy Research Establishment
Aero Aerobacter
AERP aircrew air and respiratory protection; antegrade effective refractory period; atrial effective refractory period; auditory event related potential
AERPAP antegrade effective refractory period accessory pathway
AERS acute equine respiratory syndrome
AES acetone-extracted serum; ambulatory encounter system; American Electroencephalographic Society; American Encephalographic Society; American Endocrine Society; American Endodontic Society; American Epidemiological Society; American Equilibration Society; anterior esophageal sensor; anti-embolic stockings; antral ethmoidal sphenoidectomy; aortic ejection sound; Auger's electron spectroscopy; auto-erythrocyte sensitization
AEs adverse events
AesoNPV Aedes sollicitans nucleopolyhedrovirus
AEST aeromedical evacuation support team
AET absorption-equivalent thickness; S-(2-aminoethyl) isothiuronium
AETT acetylethyltetramethyltetralin
AEV arthritis encephalitis virus; avian encephalomyelitis-like virus; avian erythroblastosis virus
AeV Antheraea eucalypti virus
AEZ acrodermatitis enteropathica, zinc deficient
AF abnormal frequency; acid-fast; actin filament; active force; adult female; afebrile; affected female; aflatoxin; albumin-free; albumose-free; alcoholic female; aldehyde fuchsin; amaurosis fugax; aminofluorine; aminophylline; amniotic fluid; angiogenesis factor; anteflexion; anterior fontanelle; antibody-forming; anti-fog; aortic flow; Arthritis Foundation; artificial feeding; ascitic fluid; atrial fibrillation; atrial flutter; atrial fusion; attenuation factor; attributable fraction; audio frequency
aF abfarad
af audio frequency
AFA acromegaloid facial appearance [syndrome]; advanced first aid; alcohol-formaldehyde-acetic acid [fixative]
AFAFP amniotic fluid alpha-fetoprotein
AFAR American Foundation for Aging Research
AFASAK Atrial Fibrillation, Aspirin, Anticoagulation [trial]
AFB acid-fast bacillus; aflatoxin B; aflatoxin biomarker; air fluidized bed; aortofemoral bypass
AFBAC affected family-based control test
AFBG aortofemoral bypass graft
AFC adult foster care; alternative forced choice; amplitude frequency characteristics; antibody-forming cell
AFCAPS Air Force Coronary Atherosclerosis Prevention Study
AFCI acute focal cerebral ischemia
AFCR American Federation for Clinical Research
AfCVd Apple fruit crinkle viroid
AFD accelerated freeze drying; acrofacial dysostosis
AFDC Aid to Families with Dependent Children
AFDH American Fund for Dental Health
AFDM adaptive focus deformable model
AFDSM adaptive focus deformable statistical model
AFDW ash-free dry weight
AFE amniotic fluid embolism
afeb afebrile
AFEDI Association Francophone Europeene des Infirmiers [Canada]
AFF atrial fibrillation and flutter; atrial filling fraction
aff afferent
AFFIRM Atrial Fibrillation Follow-Up Investigation of Rhythm Management
AFFN acrofrontofacionasal [dysostosis]
AFG aflatoxin G; amniotic fluid glucose; arbitrary function generator
aFGF acidic fibroblast growth factor
AFH angiofollicular hyperplasia; anterior facial height
AFI amaurotic familial idiocy; Atrial Fibrillation Investigators [1993 pooled study]
AFib atrial fibrillation
AFIB Atrial Fibrillation Investigation with Bidisomide [trial]
AFIB/FL atrial fibrillation/flutter
AFIP Armed Forces Institute of Pathology
AFIPS American Federation of Information Processing Societies
AFIRME antagonist of the fibrinogen receptor after myocardial events
AFIS amniotic fluid infection syndrome
AFL antifibrinolysin; artificial limb; atrial flutter
AFLNH angiofollicular lymph node hyperplasia
AFLP acute fatty liver of pregnancy; amplified fragment length polymorphism
AFM aflatoxin M; after fatty meal; American Federation of Musicians; atomic force microscopy
AFMA automated fabrication of modality aids
AFMU 5-acetylamino-6-formylamino-3-methyluracil
AFN afunctional neutrophil; antegrade femoral nail
AFNC Air Force Nurse Corps
AFND acute febrile neutrophilic dermatosis
AFO ankle/foot orthotic [brace or cast]; ankle-foot orthosis
AFORMED alternating failure of response, mechanical, [to] electrical depolarization
AFP acute flaccid paralysis; alpha-fetoprotein; anterior faucial pillar; atypical facial pain
AFPP acute fibropurulent pneumonia
AFQ aflatoxin Q
AFR aqueous flare response; ascorbic free radical
AFRAX autism-fragile X [syndrome]
AFRD acute febrile respiratory disease
AFRI acute febrile respiratory illness
AFROC Association for Freestanding Radiation Oncology Centers
AFS acquired or adult Fanconi syndrome; alternative financing system; American Fertility Society; antifibroblast serum
AFSAM Air Force School of Aviation Medicine
AFSCME American Federation of State, County and Municipal Employees
AFSM adaptive Fourier series modeling
AFSP acute fibrinoserous pneumonia
AFT aflatoxin; agglutination-flocculation test
AFTA American Family Therapy Association
AFTER Anistreplase Following Thrombolysis Effect on Reocclusion [study]; Aspirin/Anticoagulants Following Thrombolysis with Eminase in Recurrent Infarction [study]; Aspirin/Anticoagulants Following Thrombolysis with Eminase Results [study]
AFTN autonomously functioning thyroid nodule
AFV amniotic fluid volume; aortic flow velocity; Aspergillus foetidus virus
AFV-F Aspergillus foetidus virus F
AFV-S Aspergillus foetidus virus S
AFX atypical fibroxanthoma
AG abdominal girth; acidophilic granulocyte; agarose; aminoglutethimide; analytical grade; angular gyrus; anion gap; antigen; antigenomic; antiglobulin; antigravity; atrial gallop; attached gingiva; autograft; axiogingival; azurophilic granule
AG, A/G albumin-globulin [ratio]
Ag antigen; silver [Lat. argentum]
Ag* labeled antigen
ag androgenetic; antigen
AGA accelerated growth area; allergic granulomatosis and angiitis; American Gastroenterological Association; American Genetic Association; American Geriatrics Association; American Goiter Association; antigliadin antibody; antiglomerular antibody; anti-IgG autoantibody; appropriate for gestational age [birthweight]; aspartylglucosamidase
Ag-Ab antigen-antibody complex
AGAC aminoglycoside-aminocyclitol
AGAG acidic glycosaminoglycans
AGAR Australian Group on Antimicrobial Resistance [study]
AGBAD Alexander Graham Bell Association for the Deaf
AGC absolute granulocyte count; anatomically graduated component; atypical glandular cell; automatic gain control
AGC-FN atypical glandular cell-favor neoplasia
AGC-FR atypical glandular cell-favor reactive
AgCPV Abraxas grossulariata cypovirus; Autographa gamma cypovirus
AGCT antiglobulin consumption test; Army General Classification Test
AGC-U atypical glandular cell-unqualified
AGD agar gel diffusion; agarose diffusion; alpha-ketoglutarate dehydrogenase
AGDD agar gel double diffusion
AGE acrylamide gel; acute gastroenteritis; advanced glycosylation end-product; agarose gel electrophoresis; angle of greatest extension; arterial gas embolism
AGED automated general experimental device
AGEG age group
AGE-IEF agarose gel-isoelectric focusing [electrophoresis]
AGEPC acetyl glyceryl ether phosphorylcholine
AGES age grade extension size [thyroid tumor]
AGF adrenal growth factor; angle of greatest flexion
AGG agammaglobulinemia
agg agglutination; aggravation; aggregation
aggl, agglut agglutination
aggrav aggravated, aggravation
aggreg aggregated, aggregation
AGGS anti-gas gangrene serum
AGI adjusted gross income
AGID agar gel immunodiffusion
AGIS Advanced Glaucoma Intervention Study
agit agitated, agitation
AGIV Anticarisia gemmatalis iridescent virus
AGL acute granulocytic leukemia; agglutination; aminoglutethimide; anterior glenoid labrum
AGM absorbent gelling material
AGMK African green monkey kidney [cell]
AGMkK African green monkey kidney [cell]
AgMNPV Anticarisia gemmatalis multiple nucleopolyhedrovirus
AGMPyV African green monkey polyoma virus
AGN acute glomerulonephritis; agnosia
VIIIAGN factor VIII antigen
agn agnosia
AGNB aerobic gram-negative bacillus
AgNOR silver-staining nucleolar organizer region
AGOS American Gynecological and Obstetrical Society
AGP acid glycoprotein; agar gel precipitation; ambulatory glucose profile; azurophil granule protein
AGPA American Group Practice Association; American Group Psychotherapy Association
AGPI agar gel precipitin inhibition
AGPT agar-gel precipitation test
AGR aniridia-ambiguous genitalia-mental retardation [syndrome]; anticipatory goal response
agr accessory gene regulator
agri agriculture
AGRP agouti-related protein
AGS adrenogenital syndrome; Alagille syndrome; American Geriatrics Society; audiogenic seizures
AGSP Australian Gonococcal Surveillance Programme
AGT abnormal glucose tolerance; activity group therapy; acute generalized tuberculosis; alkylguanine deoxyribonucleic acid alkyltransferase; angiotensin; aniline/glyoxylate aminotransferase; antiglobulin test; Association of Genetic Technologists
agt agent
AGTH adrenoglomerulotropic hormone
AGTr adrenoglomerulotropin
AGTT abnormal glucose tolerance test
AGU aspartylglucosaminuria
AGUS atypia of gland cells of undetermined significance
AGUV aguacate virus
AGV aniline gentian violet
AGVd Australian grapevine viroid
AH abdominal hysterectomy; absorptive hypercalciuria; accidental hypothermia; acetohexamide; acid hydrolysis; acute hepatitis; adrenal hypoplasia; affected hemisphere; after-hyperpolarization; agnathia-holoprosencephaly; alcoholic hepatitis; amenorrhea and hirsutism; aminohippurate; anterior heel; anterior hypothalamus; antihyaluronidase; arcuate hypothalamus; Army Hospital; arterial hypertension; artificial heart; aryl hydrocarbon; ascites hepatoma; assisted hatching; astigmatic hypermetropia; ataxic hemiparesis; atypical hyperplasia; autoimmune hepatitis; autonomic hyperreflexia; axillary hair
A/H amenorrhea-hyperprolactinemia
A + H accident & health [policy]
A × h ampere-hour
Ah ampere hour
aH abhenry
ah hyperopic astigmatism
AHA acetohydroxamic acid; acquired hemolytic anemia; acute hemolytic anemia; American Heart Association; American Hospital Association; anterior hypothalamic area; anti-heart antibody; antihistone antibody; area health authority; arthritis-hives-angioedema [syndrome]; aspartyl-hydroxamic acid; autoimmune hemolytic anemia
AHA/ACC American Heart Association/American College of Cardiology [Task Force]
AHB alpha-hydroxybutyric acid
AHC academic health care; academic health center; acute hemorrhagic conjunctivitis; acute hemorrhagic cystitis; adrenal hypoplasia congenita; antihemophilic factor C
AHCA Agency for Health Care Administration; American Health Care Association
AHCD acquired hepatocellular degeneration
AHC/HHG adrenal hypoplasia congenita-hypogonadotropic hypogonadism [syndrome]
aHCl aqueous solution of hydrogen chloride
AHCN American Housecall Network [consumer health information]
AHCP allied health care professional
AHCPR Agency for Health Care Policy and Research (see AHRQ)
AhCPV Agrochola helvolva cypovirus
AHCy adenosyl homocysteine
AHD acquired hepatocerebral degeneration; acute heart disease; antihyaluronidase; antihypertensive drug; arterio-hepatic dysplasia; arteriosclerotic heart disease; atherosclerotic heart disease; autoimmune hemolytic disease
AHDMS automated hospital data management system
AHDP azacycloheptane diphosphonate
AHDS Allan-Herndon-Dudley syndrome
AHE acute hazardous events [database]; acute hemorrhagic encephalomyelitis
AHEA area health education activity
AHEAD Asset and Health Dynamics
AHEC area health education center
AHES artificial heart energy system
AHF acute heart failure; American Health Foundation; American Hepatic Foundation; American Hospital Formulary; antihemolytic factor; antihemophilic factor; Argentinian hemorrhagic fever; Associated Health Foundation
AHFS American Hospital Formulary Service
AHF SCENE Advanced Heart Failure Shared Clinical Experience Network
AHG aggregated human globulin; antihemophilic globulin; antihuman globulin; arterial hypertension group
AHGG aggregated human gammaglobulin; antihuman gammaglobulin
AHGS acute herpetic gingival stomatitis
AHH alpha-hydrazine analog of histidine; anosmia and hypogonadotropic hypogonadism [syndrome]; arylhydrocarbon hydroxylase; Association for Holistic Health
AHI acromiohumeral interval; active hostility index; Animal Health Institute; apnea-plus-hypopnea index; applied health informatics
AHIMA American Health Information Management Association
AHIP assisted health insurance plan
AHIS automated hospital information system
AHJ artificial hip joint
AHL apparent half-life
AHLE acute hemorrhagic leukoencephalitis
AHLG antihuman lymphocyte globulin
AHLS antihuman lymphocyte serum
AHM allied health manpower; ambulatory Holter monitor
AHMA American Holistic Medicine Association; antiheart muscle autoantibody
AHMC Association of Hospital Management Committees
AHMD alcoholic heart muscle disease
AHN Army Head Nurse; assistant head nurse
AHNS American Head and Neck Society
AHO acute hematogenous osteomyelitis; Albright hereditary osteodystrophy
AHP accountable health plan or partnership; acute hemorrhagic pancreatitis; afterhyperpolarization; air at high pressure; aminohydroxyphenylalanine; analytic hierarchy process; approved health plan; Assistant House Physician; hyperpolarizing afterpotential
AHPA American Health Planning Association
AHPO anterior hypothalamic preoptic [area]
AHPSR Alliance for Health Policy and Systems Research
AHR antihyaluronidase reaction; aryl hydrocarbon receptor; Association for Health Records; atrial heart rate
AhR aryl hydrocarbon receptor
AHRA American Hospital Radiology Administration
AHRF acute hypoxemic respiratory failure; American Hearing Research Foundation
AHRQ Agency for Healthcare Research and Quality [formerly Agency for Health Care Policy and Research]
AHRTAG Appropriate Health Resources and Technologies Action Group
AHS Academy of Health Sciences; Adventist Health Study; African horse sickness; alveolar hypoventilation syndrome; American Hearing Society; American Hospital Society; area health service; assistant house surgeon
AHSA American Health Security Act
AHSDF area health service development fund
AHSG alpha-2HS-glycoprotein
AHSN Assembly of Hospital Schools of Nursing
AHSP AIDS Health Services Program [of the Robert Wood Johnson Foundation]
AHSR Association for Health Services Research
AHSV African horse sickness virus
AHT aggregation half-time; antihyaluronidase titer; augmented histamine test; autogenous hamster tumor
AHTG antihuman thymocyte globulin
AHTP antihuman thymocyte plasma
AHTS antihuman thymus serum
AHU acute hemolytic uremic [syndrome]; air handling unit; arginine, hypoxanthine, and uracil
AHuG aggregated human IgG
AHV Abu Hammad virus; avian herpes virus
AhV Atkinsonella hypoxylon virus
AI accidental injury; accidentally incurred; active ingredient; adiposity index; aggregation index; allergy and immunology; amylogenesis imperfecta; anaphylatoxin inactivator; angiogenesis inhibitor; angiotensin I; anxiety index; aortic incompetence; aortic insufficiency; apical impulse; articulation index; artificial insemination; artificial intelligence; atherogenic index; atrial insufficiency; autoimmune, autoimmunity; avidity index; axio-incisal; first meiotic anaphase
A&I allergy and immunology
aI active ingredient
AIA allylisopropylacetamide; amylase inhibitor activity; anti-immunoglobulin antibody; anti-insulin antibody; aortoiliac aneurysm; aspirin-induced asthma; automated image analysis
AIB aminoisobutyrate; avian infectious bronchitis
AIBA aminoisobutyric acid
AIBS American Institute of Biological Sciences
AIC Akaike information criterion [a goodness-of-fit measure]; aminoimidazole carboxamide; Association des Infirmieres Canadiennes
A-IC average integrated concentration
AICA anterior inferior cerebellar artery; anterior inferior communicating artery
AI-CAH autoimmune-type chronic active hepatitis
AICAR aminoimidazole carboxamide ribonucleotide
AICD activation-induced cell death; automatic implantable cardioverter-defibrillator
AICE angiotensin I converting enzyme
AICF adaptive impulse correlated filtering; autoimmune complement fixation
AICG appraisal instrument for clinical guidelines
AI/COAG artificial intelligence hemostasis consultant system
AICPV Aporophyla lutulenta cypovirus
AICS acute ischemic coronary syndrome; artery of inferior cavernous sinus
AID acquired immunodeficiency disease; acute infectious disease; acute ionization detector; Agency for International Development; argon ionization detector; artificial insemination by donor; autoimmune deficiency; autoimmune disease; automatic implantable defibrillator; average interocular difference
AIDA automatic interpretation for diagnostic assistance; automatic interpretation of data analysis
AIDCI angle independent Doppler color imaging
AIDH atypical intraductal hyperplasia
AIDNV Aedes albopictus densovirus
AIDP acute idiopathic demyelinating polyneuropathy
AIDS acquired immune deficiency or immunodeficiency syndrome
AIDSDRUGS Clinical Trials of AIDS drugs [National Library of Medicine (NLM) database]
AIDS-KS acquired immuno deficiency syndrome with Kaposi's sarcoma
AIDSLINE on-line information on acquired immunodeficiency syndrome [MEDLARS data base]
AIDSPIT Artificial Insulin Delivery System Pancreas and Islet Transplantation [study]
AIDSTRIALS clinical trials of acquired immunodeficiency syndrome drugs [MEDLARS data base]
AIE acute inclusion-body encephalitis; acute infectious encephalitis; acute infective endocarditis
AIEP amount of insulin extractable from pancreas
AIF anemia-inducing factor; anti-inflammatory; anti-invasion factor
AIFD acute intrapartum fetal distress
AIG anti-immunoglobulin
AIgE anti-immunoglobulin E antibody
AIH amelogenesis imperfecta, hypomaturation type; American Institute of Homeopathy; artificial insemination, homologous; artificial insemination by husband; autoimmune hemolysis
AIHA American Industrial Hygiene Association; American International Health Alliance; autoimmune hemolytic anemia
AIHC American Industrial Health Conference
AIHD acquired immune hemolytic disease
AIHV alcelaphine herpesvirus
AII acute intestinal infection; angiotensin II; second meiotic anaphase
AIIS anterior inferior iliac spine
AIIT amiodarone-iodine-induced thyrotoxicosis
AIL acute infectious lymphocytosis; angiocentric immunoproliferative lesion; angioimmunoblastic lymphadenopathy
AILA angioimmunoblastic lymphadenopathy
AILD alveolar interstitial lung disease; angioimmunoblastic lymphadenopathy with dysproteinemia
AIM Abridged Index Medicus; acquisition interface module; acuity index method; advanced informatics and medicine; all in medicine; applications integration mechanism [software]; area of interest magnification; artificial intelligence in medicine; associate in internal medicine; atypical immature squamous metaplasia
AIMBE American Institute for Medical and Biological Engineering
AIMD abnormal involuntary movement disorder; active implantable medical device
AIMS abnormal involuntary movement scale; Acylated Plasminogen-Streptokinase Activator Complex [APSAC] Intervention Mortality Study; aid for the impaired medical student; Arthritis Impact Measurement Scale; Automated Immunization Management System; automated indexing management system
AIMV alfalfa mosaic virus
AIN acute interstitial nephritis; American Institute of Nutrition; anal intraepithelial neoplasia; anterior interosseous nerve
AINA automated immunonephelometric assay
AINOV Aino virus
AINS anterior interosseous nerve syndrome; anti-inflammatory nonsteroidal
AIOD aortoiliac occlusive disease
AION anterior ischemic optic neuropathy
AIOS Acute Illness Observation Scale
AIP acute idiopathic pericarditis; acute infectious polyneuritis; acute intermittent porphyria; acute interstitial pneumonia; aldosterone-induced protein; American Institute of Physics; automated immunoprecipitation; average intravascular pressure; integral anatuberculin, Petragnani
AIPE acute interstitial pulmonary emphysema; alcoholism intervention performance evaluation
AIPFP acute idiopathic peripheral facial nerve palsy
AIPRI ACE Inhibition in Progressive Renal Insufficiency [study]
AIPS American Institute of Pathologic Science
AIR acute insulin response; airway responsiveness; amino-imidazole ribonucleotide; aortoiliac reconstruction; automated image registration; average impairment rating
AIRA anti-insulin receptor antibody
AIRE Acute Infarction Ramipril Efficacy [study]; Acute Infarction Ramipril Efficacy [trial]; Acute Infarction Reperfusion Efficacy [study]
AIREX Acute Infarction Ramipril Efficacy Extension [study]
AIRF alterations in respiratory function
AI/RHEUM artificial intelligence rheumatology consultant system
AIRIO Agency for Intramural Research Integrity Office [NIH]
AIR-L Association of Internet Researchers List [listserv]
AIRS Amphetamine Interview Rating Scale
AIS Abbreviated Injury Scale; absolute increase in survival; acute ischemic stroke; acute ischemic syndrome; adenocarcinoma in situ; administrative information system; adolescent idiopathic scoliosis; aggregate injury score; amniotic infection syndrome; analyzer of interrated sequences [model of a beating ventricle]; androgen insensitivity syndrome; anterior interosseous nerve syndrome; anti-insulin serum; automatic information system; automotive injury score
AISA acquired idiopathic sideroblastic anemia
AISI African Information Society Initiative
AIS/MR Alternative Intermediate Services for the Mentally Retarded
AIT acute intensive treatment; aeromedical isolation team
AITD autoimmune thyroid disease
AITIA aspirin in transient ischemic attacks
AITIAIS Aspirin in Transient Ischemic Attacks Italian Study
AITP autoimmune idiopathic thrombocytopenic purpura
AITT arginine insulin tolerance test; augmented insulin tolerance test
AIU absolute iodine uptake; antigen-inducing unit
AIUM American Institute of Ultrasound in Medicine
AIV AI chi virus
AIVC Australian Influenza Vaccine Committee
AIVR accelerated idioventricular rhythm
AIVV anterior internal vertebral vein
AJ adherens junction
AJ, A/J ankle jerk
AJCC American Joint Committee on Cancer
AJCCS American Joint Committee on Cancer Staging
AJDL arteriojugular venous lactate content difference
AJDO2 arteriojugular venous oxygen content difference
AJR abdominojugular reflux maneuver
AJS acute joint syndrome
AJT automatic junctional tachycardia
AK above knee; acetate kinase; actinic keratosis; adenosine kinase; adenylate kinase; artificial kidney
A/K, ak above knee [amputation]
A®K ankle to knee
AKA above-knee amputation; alcoholic ketoacidosis; also known as; antikeratin antibody
aka also known as
AK amp above-knee amputation
AKAV Akabane virus
AKBR arterial ketone body ratio
AKE acrokeratoelastoidosis
A/kg amperes per kilogram
AKP alkaline phosphatase
AKRMLV AKR murine leukemia virus
AKS alcoholic Korsakoff syndrome; auditory and kinesthetic sensation
AKU alkaptonuria
AL absolute latency; acinar lumen; acute leukemia; adaptation level; albumin; alcoholism [and other drug dependence services]; alignment; amyloid L; amyloidosis; analyzer and loader; anatomic location, anatomical localizer; anterior leaflet; anterolateral; antihuman lymphocytic [globulin]; argininosuccinate lyase; avian leukosis; axial length; axillary loop; axiolingual; left ear [Lat. auris laeva]
AL angiographic area of lateral projection
Al allantoic; allergic, allergy; aluminum
al left ear [Lat. auris laeva]
ALA amebic liver abscess; American Laryngological Association; American Lung Association; aminolevulinate; aminolevulinic acid; axiolabial
ALa axiolabial
Ala alanine
ala alanine
AL-Ab antilymphocyte antibody
ALAD abnormal left axis deviation
ALAD, ALA-D aminolevulinic acid dehydrase
ALADH delta-aminolevulinate dehydratase
ALADP aminolevulinic acid dehydrogenase deficiency porphyria
ALAG, ALaG axiolabiogingival
A-LAK adherent lymphokine-activated killer [cell]
ALAL, ALaL axiolabiolingual
ALAO angiographic area of left anterior oblique projection
AlaP, ala-P alafosfalin
ALARA as low as reasonably achievable [radiation exposure]
ALARM adjustable leg and ankle repositioning mechanism
ALARP as low as reasonably possible
ALAS delta-aminolevulinate synthase
ALASH delta-aminolevulinate synthase, housekeeping type
ALAT alanine aminotransferase
ALB albumin; avian lymphoblastosis
alb albumin; white [Lat. albus]
ALBC albumin clearance
ALB/GLOB albumin/globulin [ratio]
ALC absolute lymphocyte count; acute lethal catatonia; aided living center; alternate level of care; Alternative Lifestyle Checklist; approximate lethal concentration; avian leukosis complex; axiolinguocervical
alc alcohol, alcoholic, alcoholism
ALCA anomalous left coronary artery
ALCAPA anomalous origin of left coronary artery from pulmonary artery
ALCAR acetyl-L-carnitine
ALCEQ Adolescent Life Change Event Questionnaire
ALCL anaplastic large cell lymphoma
ALCO Anonymous Fighters Against Obesity
alcoh alcohol, alcoholic, alcoholism
AlCPV Agrochola lychnidis cypovirus; Aporophyla lutulenta cypovirus
AlcR, alcR alcohol rub
AlCr aluminum crown
ALD adrenoleukodystrophy; alcoholic liver disease; aldehyde dehydrogenase; aldolase; aldosterone; anterior latissimus dorsi; Appraisal of Language Disturbance; approximate lethal dose; assistive listening device
Ald aldolase; aldosterone
ALDA aldolase A
ALDB aldolase B
ALDC aldolase C
ALDF American Lyme Disease Foundation
ALDH aldehyde dehydrogenase
Aldo aldosterone
ALDOA aldolase A
ALDOC aldolase C
ALDOST aldosterone
ALDP adrenoleukodystrophy protein
ALDR aldose reductase
ALDS albinism-deafness syndrome
ALDUSA aspirin low dosage in unstable angina
ALE active life expectancy; adaptive line enhancer; allowable limits of error; amputated lower extremity
ALEC artificial lung-expanding compound
ALEP atypical lymphoepithelioid cell proliferation
ALERT Amiodarone vs Lidocaine Inpatient Emergency Resuscitation Trial; Assessment of Lescol in Renal Transplantation [to reduce coronary event]
ALEV Alenquer virus
ALF acute liver failure; advance laser flowmeter; American Liver Foundation; assisted living facilities; automated laser fluorescence
ALFT abnormal liver function test
ALFV Alfuy virus
ALG antilymphocytic globulin; axiolinguogingival
alg allergy
ALGOL algorithmic oriented language
ALH angiolymphoid hyperplasia; anterior lobe hormone; anterior lobe of hypophysis
ALHE angiolymphoid hyperplasia with eosinophilia
ALHV alcelaphine herpesvirus
ALI acute lung injury; annual limit of intake; average lobe index
ALICE advanced large-scale integrated computational environment
ALIF anterior lumbar interbody fusion
ALIP abnormal localized immature myeloid precursor
ALIVE Adenosine Lidocaine Infarct Zone Viability Enhancement [trial]; Amiodarone vs Lidocaine in Prehospital Refractory Ventricular Fibrillation [study]; Azimilide Postinfarction Survival Evaluation [trial]
ALJV Alajuela virus
ALK automated lamellar keratoplasty
ALK, alk alkaline; alkylating
ALK-P alkaline phosphatase
ALL acute lymphoblastic leukemia; acute lymphocytic leukemia; Antihypertensive and Lipid-Lowering [study]
all allergy, allergic
ALLA acute lymphocytic leukemia antigen
ALLHAT Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial
ALLO atypical Legionella-like organism
ALM aerial lentiginous melanoma; alveolar living material
ALME acetyl-lysine methyl ester
ALMI anterior lateral myocardial infarct
ALMV Almeirim virus; Almpiwar virus; anterior leaflet of the mitral valve
AlMV alfalfa mosaic virus
ALN allylnitrile; anterior lymph node; axillary lymph node
ALO average lymphocyte output; axiolinguo-occlusal
ALOS average length of stay
ALOSH Appalachian Laboratory for Occupational Safety and Health
ALOX aluminum oxide
ALP acute leukemia protocol; acute lupus pericarditis; alkaline phosphatase; alveolar proteinosis; anterior lobe of pituitary; antileukoproteinase; antilymphocytic plasma; argon laser photocoagulation; automated linkage preprocessor
AlPase alkaline phosphatase
ALPG alkaline phosphatase, germ-cell
a Greek letter alpha; angular acceleration; first [carbon atom next to the carbon atom bearing the active group in organic compounds]; optical rotation; probability of type I error; solubility coefficient
alpha2-AP alpha2-antiplasmin
a1-AT alpha1-antitrypsin
a error type I error [statistics]
alpha-GLUC alpha-glucosidase
alpha2M alpha2-macroglobulin
a2 PIPC a2-plasmin inhibitor-plasmin complex
ALPL alkaline phosphatase, liver
ALPP alkaline phosphatase, placental
ALPPL alkaline phosphatase-like, placental
ALPS angiolymphoproliferative syndrome; Aphasia Language Performance Scale; attitudinal listening profile system
ALPSA anterior labroligamentous periosteal sleeve avulsion
ALPV aphid lethal paralysis virus
ALR aldehyde reductase
ALRI anterolateral rotatory instability
ALROS American Laryngological, Rhinological, and Otological Society
ALS acute lateral sclerosis; advanced life support; afferent loop syndrome; alkali-labile site; amyotrophic lateral sclerosis; angiotensin-like substance; anterolateral sclerosis; anticipated life span; antilymphocyte serum
ALSD Alzheimer-like senile dementia
ALSPAC Avon Longitudinal Study of Pregnancy and Childhood
ALS-PD amyotrophic lateral sclerosis-parkinsonism-dementia [complex]
AlStV Alstroemeria streak virus
AL-SV avian leukosis sarcoma virus
ALT alanine aminotransferase; argon laser trabeculoplasty; autolymphocyte therapy; avian laryngotracheitis
AlT aluminum tartrate
Alt, alt alternate; altitude; aluminum tartrate
ALTB acute laryngotracheobronchitis
ALTE apparent life-threatening event
ALTEE acetyl-L-tyrosine ethyl ester
ALTS acute lumbar traumatic sprain or syndrome
ALTV Altamira virus
ALU arithmetic and logic unit
ALV Abelson leukemia virus; adeno-like virus; alveolar, alveolus; American latent virus; Arracacha latent virus; ascending lumbar vein; avian leukosis virus
Alv alveolus, alveolar
ALV-A avian leukosis virus A
ALVAD abdominal left ventricular assist device
ALVF acute left ventricular failure
ALV-HPRS103 avian leukosis virus-HPRS103
ALV M alveolar mucosa
ALVT aortic and left ventricular tunnel
alv vent alveolar ventilation
ALVX alveolectomy
ALW arch-loop whorl
ALWMI anterolateral wall myocardial infarct
AM Academic Medicine [journal]; actomyosin; acute myelofibrosis; adult male; adult monocyte; aerospace medicine; affected male; akinetic mutism; alcoholic male; alveolar macrophage; alveolar mucosa; amacrine cell; ambulatory; amethopterin; ametropia; ammeter; amperemeter; ampicillin; amplitude modulation; amyl; anovular menstruation; anterior mitral leaflet; antimycotic; arithmetic mean; arousal mechanism; articular manipulation; aviation medicine; axiomesial; meter angle; myopic astigmatism
Am americium; amnion; amyl
A/m amperes per meter
A-m2 ampere-square meter
am ametropia; amyl; amplitude; meter angle; myopic astigmatism
AMA against medical advice; alkaline membrane assay; American Management Association; American Medical Association; analog multiplexer array; antimitochondrial antibody; antimyosin antibody; antithyroid microsomal antibody; apocrine membrane antigen; arm muscle area; Australian Medical Association
AMA-DE American Medical Association Drug Evaluation
AMAL Aero-Medical Acceleration Laboratory
AMANET, AMA/Net American Medical Association Network
AMAP American Medical Accreditation Program; as much as possible
A-MAT amorphous material
AMAV Amapari virus
AMB amphotericin B; anomalous muscle bundle; anteromedial bundle; avian myeloblastosis
Amb ambulance; ambulatory, ambulation
amb ambient; ambiguous; ambulance; ambulatory
AMBER advanced multiple-beam equalization radiography; assisted model building with energy refinement
ambig ambiguous
AMBL acute megakaryoblastic leukemia
AMbL acute myeloblastic leukemia
AMBRE atraumatic multidirectional bilateral rehabilitation [shoulder]
AMBRI atraumatic, multidirectional, bilateral radial instability
AMBU air mask bag unit
ambul ambulatory
AMBV Anhembi virus
AMC academic medical center; acetylmethyl carbinol; Animal Medical Center; antibody-mediated cytotoxicity; antimalaria campaign; arm muscle circumference; Army Medical Corps; arthrogryposis multiplex congenita; ataxia-microcephaly-retardation [syndrome]; automated mixture control; axiomesiocervical
AMCAS American Medical College Application Service
AMCD Aeromedical Certification Division
AMCHA aminomethylcyclohexane-carboxylic acid
AMCN anteromedial caudate nucleus
AmCPV Antheraea mylitta cypovirus
AMCRA American Managed Care and Review Association
AMCV avian myelocytomatosis virus
AMD acid maltase deficiency; acromandibular dysplasia; actinomycin D; S-adenosylmethionine decarboxylase; adrenomyelodystrophy; advance medical directives; age-related macular degeneration; Aleutian mink disease; alpha-methyldopa; Association for Macular Diseases; axiomesiodistal
AMDA American Medical Directors Association
AMDF average magnitude difference function
AMDGF alveolar macrophage-derived growth factor
AMDS Association of Military Dental Surgeons
AMDV Aleutian mink disease virus
AME amphotericin methyl ester; apparent mineralocorticoid excess; aseptic meningoencephalitis
AMEA American Medical Electroencephalographic Association
AMEAE acute monophasic experimental autoimmune encephalomyelitis
AMED Allied and Alternative Medicine Database [UK]; Army Medical Department
AMEDD Army Medical Department
AMEDS Army Medical Service
AMEGL, AMegL acute megakaryoblastic leukemia
AMEND Aiding Mothers and Fathers Experiencing Neonatal Death
AMES age metastasis extension size
AMet adenosyl-L-methionine
AMETHIST Ambroxol Efficacy and Tolerability on Hypersecretion, Italian Study
AMEV Amsacta moorei entomopoxvirus
AMF antimuscle factor
Amf amniotic fluid
AMFAR American Foundation for AIDS Research
AM/FM automated mapping and facility management
AMFPI active matrix flat panel imager
AMG alpha-2-macroglobulin; amyloglucosidase; antimacrophage globulin; arterial migraine grinder; axiomesiogingival
A2MG alpha-2-macroglobulin
AMH Accreditation Manual for Hospitals; anti-m
Amh mixed astigmatism with myopia predominating over hyeropia
AMHA Association of Mental Health Administrators
AMHIS Alberta Mental Health Information System
AMHT automated multiphasic health testing
AMI acquired monosaccharide intolerance; acute myocardial infarction; amitriptyline; anterior myocardial infarct; anterior myocardial infarction; Argatroban in Myocardial Infarction [study]; Association of Medical Illustrators; Athletic Motivation Inventory; axiomesioincisal
AMIA American Medical Informatics Association
AMIABLE Acute Myocardial Infarction Angioplasty Bolus Lysis Evaluation
AMICUS Austrian Multicenter Isradipine cum Spirapril Study
AMIS Ambulatory Medical Information System; Aspirin in Myocardial Infarction Study; Automated Management Information System
AMISTAD Acute Myocardial Infarction Study of Adenosine
AMKL acute megakaryoblastic leukemia
AML acute monocytic leukemia; acute mucosal lesion; acute myeloblastic leukemia; acute myelocytic leukemia; acute myelogenous leukemia; anatomic medullary locking; angiomyolipoma; anterior mitral leaflet; automated multitest laboratory
AMLB alternate monaural loudness balance
AMLC adherent macrophage-like cell; autologous mixed lymphocyte culture
AMLCD active matrix liquid crystal display
AMLR autologous mixed lymphocyte reaction
AMLS antimouse lymphocyte serum
AMLSGA acute myeloblastic leukemia surface glycoprotein antigen
AMM agnogenic myeloid metaplasia; ammonia; antibody to murine cardiac myosin; Association of Medical Microbiologists [UK]; World Medical Association [Fr. Association Medicale Mondiale]
amm ammonia
AMML acute myelomonocytic leukemia
AMMoL acute myelomonocytic or myelomonoblastic leukemia
ammon ammonia
AMN adrenomyeloneuropathy; alloxazine mononucleotide; aminonucleoside; anterior median nucleus
AMNS aminonucleoside
AMO assistant medical officer; axiomesio-occlusal
AmO alarm object
amo, amor amorphous
A-mode amplitude mode; amplitude modulation
AMOG adhesion molecule on glia
AMOL, AMoL acute monocytic or monoblastic leukemia
AMP accelerated mental processes; acid mucopolysaccharide; adenosine monophosphate; Aerospace Medical Panel; 2,3-aminophenazine; 2-amino-2,1-propanol; amphetamine; ampicillin; ampule; amputation; average mean pressure
amp ampere; amplification; amplitude; ampule; amputation, amputee
AMPA alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionate; American Medical Publishers Association; aminoisopropyl propionic acid
AMPAC American Medical Political Action Committee
AMPAR alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptor
AMP-c cyclic adenosine monophosphate
AMPH, amphet amphetamine
amp-hr ampere-hour
AMPI APSAC in Acute Myocardial Infarction Placebo Controlled Investigation
ampl large [Lat. amplus]
AMPLE allergies, medications, past medical history, last meal, events preceding present condition
A-M pr Austin-Moore prosthesis
Amp-RT amplified reverse transcriptase
AMPS abnormal mucopolysacchariduria; acid mucopolysaccharide
AMPT active mouse protection test; alpha-methylparatyrosine
ampul ampule
AMR acoustic muscle reflex; activity metabolic rate; acute mitral regurgitation; alopecia-mental retardation [syndrome]; alternate motion rate; alternating motion reflex; ambulatory medical record
AMRA American Medical Record Association
AMRF American Medical Resources Foundation
AMRI anteromedial rotatory instability
AMRL Aerospace Medical Research Laboratory
AMRNL Army Medical Research and Nutrition Laboratory
AMRO Amsterdam-Rotterdam Trial Comparing Excimer Laser and Percutaneous Transluminal Coronary Angioplasty
AMRS ambulatory medical records system; automated medical record system
AMS ablepharon-microstomia syndrome; accelerator mass spectrometry; act management system; acute mountain sickness; adenosylmethionine synthetase; advanced large-scale integrated computational environment [ALICE] memory snooper; advanced medical systems [fetal monitor]; aggravated in military service; altered mental status; American Microscopical Society; amount of substance; amylase; antimacrophage serum; Army Medical Service; aseptic meningitis syndrome; Association of Military Surgeons; auditory memory span; automated multiphasic screening
ams amount of a substance
AMSA acridinylamine methanesulfon-m-anisidide; American Medical Society on Alcoholism; American Medical Students Association; amsacrine
AMSAODD American Medical Society on Alcoholism and Other Drug Dependencies
AMSC Army Medical Specialist Corps
AMSP Association of Medical School Pharmacology
AMSRDC Army Medical Service Research and Development Command
AMSU ambulatory minor surgery unit
AMT acute miliary tuberculosis; Adenosine Scan Multicenter Trial; alpha-methyltyrosine; American Medical Technologists; amethopterin; amitriptyline; amniotic membrane transplantation; amphetamine; anxiety management training; atherogenic metabolic triad
amt amount
AMTV Arumowot virus
amt/vol amount/volume
AMU Army Medical Unit
amu atomic mass unit
AmuLV Abelson murine leukemia virus; amphotrophic murine leukemia virus
AMV alfalfa mosaic virus; apex to mitral valve; assisted mechanical ventilation; asteroid mosaic virus; avian myeloblastosis virus
AMVF additive multiattribute value function
AMVI acute mesenteric vascular insufficiency
aMVL anterior mitral valve leaflet
AMWA American Medical Women's Association; American Medical Writers' Association
AMX advanced multiprocessor extension; amoxicillin
AMY, amy amylase
AMyA antimyocardial antibody
AN acanthosis nigricans; acetylnitrile; acne neonatorum; acoustic neuroma; adult, normal; ala nasi; amyl nitrate; aneurysm; anisometropia; anode; anorexia nervosa; antenatal; anterior; antineuraminidase; aseptic necrosis; atmosphere normal; atrionodal; autonomic neuropathy; avascular necrosis
A/N antenatal; as needed
An actinon; anisometropia; anode, anodal; antigen; Aspergillus niger; atmosphere normal
An atmosphere normal
A1-NA A1 area of the nucleus ambiguus
ANA acetylneuraminic acid; American Narcolepsy Association; American Neurological Association; American Nurses Association; anesthesia [anaesthesia]; antibody to nuclear antigens; antinuclear antibody; aspartyl naphthylamide
Ana anaplastic
ANAD anorexia nervosa with associated disorders
ANAE alpha-naphthyl acetate esterase
ANAG acute narrow angle glaucoma
AnaINH anaphylotoxin inhibitor
ANAL, anal analgesia, analgesic; analysis, analytic
ANAM automated neuropsychological assessment metrics
ANAP agglutination negative, absorption positive [reaction]
ANAS anastomosis; auditory nerve activating substance
ANASCD American Nurses Association Steering Committee on Databases
anast anastomosis
ANAT anatomic structure [UMLS]
Anat, anat anatomy, anatomist
ANAV Anopheles A virus
ANB avascular necrosis of bone
ANBN alpha-nitroso-beta-naphthol
ANBP Australian National Blood Pressure [trial]
ANBV Anopheles B virus
ANC absolute neutrophil count; acid neutralization capacity; active noise control [MRI]; adaptive or noise canceler; adult neuronal ceroid [lipofuscinosis]; ancestor [UMLS]; antigen-neutralizing capacity; Army Nurse Corps
ANC1 ancestor, first level in hierarchy [UMLS]
ANCA antineutrophilic cytoplasmic antibody
ANCC, AnCC anodal closure contraction
ANCHR Access to National Claims History Repository [Medicare database]
ANCL adult neuronal ceroid lipofuscinosis
ANCOVA analysis of covariance
ANCR Association of the Nordic Cancer Registries
AND algoneurodystrophy; anterior nasal discharge
ANDA Abbreviated New Drug Application
ANDRO, andro androsterone
ANDTE, AnDTe anodal duration tetanus
ANDV Andasibe virus; Andes virus
anes, anesth anesthesia, anesthetic
ANESR apparent norepinephrine secretion rate
AnEx, an ex anodal excitation
ANF alpha-naphthoflavone; American Nurses' Foundation; antineuritic factor; antinuclear factor; atrial natriuretic factor
AnfaMNPV Anagrapha falciform multiple nucleopolyhedrovirus
ANFIS adaptive neuro-fuzzy inference system
ANFO ammonium nitrate-fuel oil [bomb]
ANG angiogenin; angiogram, angiography; angiotensin
Ang II, ANGII angiotensin II
ang angiogram, angiography; angle, angular
ANGEL a new global environment for learning [computer-assisted]
ANGFA antinerve growth factor antibody
Ang GR angiotensin generation rate
AngHV anguillid herpesvirus
Angio , angiogram, angiographicangiography
ang pect angina pectoris
ANH academic nursing home
anh anhydrous
ANHV Anhanga virus
AnHV anatid herpesvirus
ANI acute nerve irritation
ANIA automated nephelometric immunoassay
ANIM animal [UMLS]
ANIMAL automatic nonlinear image matching and anatomical labeling
ANIR Advanced Networking Infrastructure and Research [National Science Foundation]
ANIS Anorexia Nervosa Inventory for Self-rating
aniso anisocytosis
ANIT alpha-naphthyl-isothiocyanate
ANK, Ank ankyrin
ank ankle
ANL acute nonlymphoblastic leukemia
ANLI antibody-negative with latent infection
ANLL acute nonlymphocytic leukemia
ANN artificial neural network
Ann annual
ANNA antineutrophil nuclear antibody
ann fib annulus fibrosus
ANNP artificial neural network processor
ANOC, AnOC anodal opening contraction
ANOCL anodal opening clonus
ANOCOVA analysis of covariance [statistics]
ANOP anophthalmia
ANOV, ANOVA analysis of variance [statistics]
ANP acute necrotizing pancreatitis; adult nurse practitioner; advanced nurse practitioner; ancillary nursing personnel; A-norprogesterone; atrial natriuretic peptide
ANP-A atrial natriuretic peptide A
ANP-B atrial natriuretic peptide B
ANP-C atrial natriuretic peptide C
A-NPP absorbed normal pooled plasma
ANRC American National Red Cross
ANRL antihypertensive neutral renomedullary lipid
ANS acanthion; American National Standards; American Nimodipine Study; American Nutrition Society; 8-anilino-1-naphthalene-sulfonic acid; anterior nasal spine; antineutrophilic serum; antirat neutrophil serum; Army Nursing Service; arterionephrosclerosis; Associate in Nursing Science; autonomic nervous system
ANSCII American National Standard Code for Information Interchange
ANSI American National Standards Institute
ANSI-HISPP American National Standards Institute Healthcare Informatics Standards Planning Panel
AN-SIR advice nurse structured implicit review [telemedicine]
ANSWER Agency for Toxic Substances and Disease Registry/National Library of Medicine's Workstation for Emergency Response
ANT acoustic noise test; adenine nucleotide translocator; aminonitrothiazole; anterior
ant anterior; antimycin
AntA antimycin A
antag antagonist
ANTENOX [Switch to oral] Anticoagulant from Enoxaparin [in treatment of acute deep venous thrombosis]
Anth-Gly anthraquinone-glycine [conjugate]
Anth-IDA anthraquinone-iminodiacetate [conjugate]
anti-HBc antibody to hepatitis B core antigen
anti-HBe antibody to hepatitis B early antigen
anti-HBs antibody to hepatitis B surface antigen
anti-PNM Ab anti-peripheral nerve myelin antibody
AntLV Anthriscus latent virus
ANTR apparent net transfer rate
ANTU alpha-naphthylthiourea
ANTV Antequera virus
ANT3Y adenine nucleotide translocator 3 Y
ANU artificial neural unit
ANuA antinuclear antibody
ANUG acute necrotizing ulcerative gingivitis
ANUV Ananindeua virus
ANV avian nephritis virus
AnV-S Aspergillus niger virus S
ANX annexin
anx anxiety
ANZ Australia and New Zealand [heart failure collaborative study]
AO abdominal aorta; abdominally obese; achievement orientation; acid output; acridine orange; age of onset; ankle orthosis; anodal opening; anterior oblique; antisense oligonucleotide; aorta; aortic opening; arthro-ophthalmopathy; assessment-object; atelosteogenesis; atomic orbital; atrioventricular [valve] opening; average optical [density]; axio-occlusal
Ao aorta; Aspergillus ochraceus
Ao orifice area
A/O atlanto-occipital
A&O, A/O alert and oriented
AOA Administration on Aging; Alpha Omega Alpha Honor Society; American Optometric Association; American Orthopedic Association; American Orthopsychiatric Association; American Osteopathic Association; ascending aorta
AoA age of acquisition
AOAA amino-oxyacetic acid
AOAC Association of Official Agricultural Chemists
AOAP as often as possible
AoArE aortic arch epinephrine
AOAS American Osteopathic Academy of Sclerotherapy
AOB accessory olfactory bulb; alcohol on breath
AOBEM American Osteopathic Board of Emergency Medicine
AOBS acute organic brain syndrome
AOC abridged ocular chart; allyloxycarbonyl; amyloxycarbonyl; anodal opening contraction; area of concern
AOCA American Osteopathic College of Anesthesiologists
AOCD American Osteopathic College of Dermatology
AOCl anodal opening clonus
AOCN advanced oncology certified nurse
AOCPA American Osteopathic College of Pathologists
AOCPR American Osteopathic College of Proctology
AOCR American Osteopathic College of Radiology; American Osteopathic College of Rheumatology
AOD Academy of Operative Dentistry; Academy of Oral Dynamics; adult-onset diabetes; anesthesiologist-on-duty; arterial oxygen desaturation; arteriosclerotic occlusive disease; auriculo-osteodysplasia
AODM adult-onset diabetes mellitus
AODME Academy of Osteopathic Directors of Medical Education
AODP alcohol and other drug problems
AOE admission order entry
AoE aortic epinephrine
AOHA American Osteopathic Hospital Association
AoHV aotine herpesvirus
AOI apnea of infancy
AoIR Association of Internet Researchers
AOIVM angiographically occult intracranial vascular malformation
AOL acro-osteolysis
AOM acute otitis media; alternatives of management; arthroophthalmopathy; azoxymethane
AOMA American Occupational Medical Association
AOMP, AoMP aortic mean pressure
AON anterior olfactory nucleus
AONE American Organization of Nurse Executives
AOO anodal opening odor; atrial asynchronous (competitive, fixed-rate) [pacemaker]
AOP anodal opening picture; aortic pressure
AoP aortic pressure
AOPA American Orthotics and Prosthetics Association
AOPC adult outpatient psychotherapy clinic
AOPW, AoPW aortic posterior wall
AOR adjusted odds ratio; Alvarado Orthopedic Research [instruments]; auditory oculogyric reflex
AORN Association of Operating Room Nurses
AOS American Ophthalmological Society; American Otological Society; anodal opening sound; anterior [o]esophageal sensor
A2-OS aortic second sound, opening snap
AOSF adaptive order statistic filter
AOSSM American Orthopedic Society for Sports Medicine
AOT accessory optic tract; acute occlusive thrombus or thrombosis; Anderson Olsson table; anodal opening tetanus; Association of Occupational Therapists
AOTA American Occupational Therapy Association
AOTe anodal opening tetanus
AOTF American Occupational Therapy Foundation
AOU apparent oxygen utilization
AOV aortic valve
AoV aortic valve; Aspergillus ochraceus virus
AP abdominal pain; abdominal [voiding] pressure; abdominoperitoneal; accelerated phase; accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action plan; action potential; activator protein; active pepsin; active pressure; acute pancreatitis; acute phase; acute pneumonia; acute proliferative; adductor pollicis [muscle]; adenomatous polyposis; adolescent psychiatry; after parturition; agno protein; alkaline phosphatase; alum precipitated; aminopeptidase; aminopyrine; amyloid P-component; amyloid peptide; anatomic profile; angina pectoris; antepartal [Lat. ante partum]; anterior pituitary; anteroposterior; antidromic potential; antiplasmin; antipyrine; antiviral protein; antral peristalsis; aortic pressure; aortopulmonary; apical pulse; apothecary; appendectomy; appendicitis; appendix; apurinic acid; apurinic/apyrimidinic [site in DNA]; area postrema; arithmetic progression; arterial pressure; artificial pneumothorax; aspiration pneumonia; assessment and plans; association period; atherosclerotic plaque; atrial pacing; atrioventricular pathway; attending physician; axiopulpal; before parturition [Lat. ante partum]
A-P anteroposterior
A&P anterior and posterior; assessment and plans; auscultation and percussion
A/P abdominal/perineal; antepartum; ascites/plasma [ratio]
A2 P2 aortic second sound, pulmonary second sound
4-AP 4-aminopyridine
Ap apex
Ap amount in plasma
aP acellular pertussis [vaccine]
ap anteroposterior; attachment point
APA action potential amplitude; aldosterone-producing adenoma; Ambulatory Pediatric Association; American Pancreatic Association; American Pharmaceutic Association; American Physiotherapy Association; American Podiatric Association; American Psychiatric Association; American Psychoanalytic Association; American Psychological Association; American Psychopathological Association; American Psychotherapy Association; aminopenicillanic acid; anterior margin of pulmonary artery; antipernicious anemia [factor]; antiphospholipid antibody; antiproliferative antibody; arcuate premotor area; azidophenacyl
ApA adenylyl (3¢-5¢) adenosine; azidophenacyl
APAAP alkaline phosphatase-antialkaline phosphatase [labeling]
APAB antiphospholipid antibody; azidophenacyl bromide
APACHE Acute Physiology, Age, and Chronic Health Evaluation
APACS analog picture archiving and communication system
APAF antipernicious anemia factor
APAMI Asian Pacific Association of Medical Informatics
APAN Asian-Pacific Advanced Network
APAP acetaminophen; adaptive positive airway pressure
APASS Antiphospholipid Antibodies in Stroke Studies
APB abductor pollicis brevis; atrial premature beat
APBD adult polyglucosan body disease
APC acetylsalicylic acid, phenacetin, and caffeine; activated protein C; adenoidal-pharyngeal-conjunctival [agent]; adenomatous polyposis coli; allophyocyanin; all-purpose capsule; angiotensin presenting cell; antigen-presenting cell; antiphlogistic corticoid; aortopulmonary collateral artery; aperture current; apneustic center; argon plasma coagulation; Association for Practitioners in Infection Control; aspirin-phenacetin-caffeine; atrial premature contraction; autologous platelet concentrate
aPC activated protein C
ApCAM aplasia cell adhesion molecule
APCC aspirin-phenacetin-caffeine-codeine
APCD acquired prothrombin complex deficiency [syndrome]; adult polycystic kidney disease
APCF acute pharyngoconjunctival fever
APCG apex cardiogram
Ap4CH apical four-chamber plane
APCKD adult-type polycystic kidney disease
ApCPV Anaitis plagiata cypovirus; Antheraea pernyi cypovirus
APC-R, APCR activated protein C resistance
APD acquired perforating dermatosis; action potential duration [of heart]; acute polycystic disease; adult polycystic disease; advanced physical diagnosis; airway pressure disconnect; anteroposterior diameter; antipsychotic drug; articulation-phonological disorders; atrial premature depolarization; autoimmune progesterone dermatitis; automated peritoneal dialysis; avalanche photodiodes
APD80 action potential duration at 80% repolarization
A-PD anteroposterior diameter
APDb [heart] action potential duration-baseline beat
APDF amplitude probability density function
APDI Adult Personal Data Inventory
APDIM Association of Program Directors in Internal Medicine
ApDNV Aedes pseudoscutellaris densovirus
APDp [heart] action potential duration-premature stimulus
AP-DRG all patients-diagnosis-related group
APE acetone powder extract; acute polioencephalitis; acute psychotic episode; acute pulmonary edema; airway pressure excursion; aminophylline, phenobarbital, and ephedrine; anterior pituitary extract; asthma of physical effort; avian pneumoencephalitis
APECED autoimmune polyendocrinopathy-candidosis-ectodermal dystrophy
ApEn approximate entropy
APES aminopropyltriethoxysilane
APEUV Apeu virus
APEX automatic programmable electronic matrix
APF acidulated phosphofluoride; adaptive pattern filtering; American Psychological Foundation; anabolism-promoting factor; animal protein factor; antiperinuclear factor; assigned protection factor
APG acid-precipitated globulin; air plethysmography; ambulatory patient group; animal pituitary gonadotropin; antegrade pyelography
APGAR American Pediatric Gross Assessment Record
APGL alkaline phosphatase activity of granular leukocytes
APGO Association of Professors of Gynecology and Obstetrics
APH alcohol-positive history; alternative pathway hemolysis; aminoglycoside phosphotransferase; antepartum hemorrhage; anterior pituitary hormone; Association of Private Hospitals
Aph aphasia
APHA American Protestant Hospital Association; American Public Health Association
APhA American Pharmaceutical Association
APHEA Air Pollution in Health, European Approach
APHIS Animal and Plant Health Inspection Service
APHL Association of Public Health Laboratories
APHP anti-Pseudomonas human plasma
API alkaline protease inhibitor; Analytical Profile Index; annual parasitological index; application program interface; applications programming interface; arterial pressure index; atmospheric pressure ionization; Autonomy Preference Index
APIC Acenocoumarin vs Pentoxifylline in Intermittent Claudication [trial]; Association for Practitioners in Infection Control
APIE assessment, plan, implementation, and evaluation
APIM Association Professionnelle Internationale des Medecins
APIP additional personal injury protection
APIS Antihypertensive Patch, Italian Study
APIVR artificial pacemaker-induced ventricular rhythm
aPKC atypical protein kinase C
APKD adult-onset polycystic kidney disease
APL abductor pollicis longus; accelerated painless labor; acute promyelocytic leukemia; animal placenta lactogen; anterior pituitary-like; anterior pulmonary leaflet
aPL antiphospholipid
A-P&L anteroposterior and lateral
APLA, aPLA antiphospholipid antibody
APLAUD Antiplatelet Useful Dose [trial]
APLAUSE Antiplatelet Treatment After Intravascular Ultrasound Guided Optimal Stent Expansion [trial]
APLP amyloid precursor-like protein
APLPV American plum line pattern virus
APLS advanced pediatric life support
APLV Andean potato latent virus
APM Academy of Parapsychology and Medicine; Academy of Physical Medicine; Academy of Psychosomatic Medicine; acid precipitable material; admission pattern monitoring; affected pedigree member; alternating pressure mattress; anterior papillary muscle; anteroposterior movement; apical plasma membrane; aspartame; Association of Professors of Medicine
APML acute promyelocytic leukemia
APMOMS Advisory Panel on the Mission and Organization of Medical Schools
APMoV Andean potato mottle virus
APMR Association for Physical and Mental Retardation
APMV avian paramyxovirus
ApMV apple mosaic virus
APN acute pyelonephritis; advanced practice nurse; average peak noise
APNCU adequacy of prenatal care utilization
APNH antiporter sodium-hydrogen ion
APO abductor pollicis obliquus; acquired pendular oscillation; Adriamycin, prednisone, vincristine; adverse patient occurrence; aphoxide; apolipoprotein; apomorphine; apoprotein
Apo, apo apolipoprotein
APOA, apoA apolipoprotein A
APOB, apoB apolipoprotein B
APOC African Program for Onchocerciasis Control; apolipoprotein C
apoC apolipoprotein C
APOE, apoE apolipoprotein E
APOIV Apoi virus
APOJ, apoJ apolipoprotein J
APORF acute postoperative renal failure
apoth apothecary
APP acute phase protein; alum-precipitated pyridine; aminopyrazolopyrimidine; amyloid peptide precursor; amyloid precursor protein; antiplatelet plasma; aqueous procaine penicillin; automated physiologic profile; average pixel projection; avian pancreatic polypeptide
App, app appendix
APPA American Psychopathological Association; 4-aminophenylacetic acid
appar apparatus
APPC application or advanced program-to-program communication
APPCPT atom and physicochemical property class pair and torsion
APPCR, AP-PCR arbitrarily primed polymerase chain reaction
APPG aqueous procaine penicillin G
APPI Active Persantine in Postischemic Injury [study]
appl appliance; application, applied
APPROACH Alberta Provincial Project for Outcomes Assessment in Coronary Heart Disease
approp appropriate
approx approximate
APPS amyloid precursor protein secretase
APPT Adolescent Pediatric Pain Tool
Appt, appt appointment
appx appendix
appy appendectomy
APR abdominoperineal resection; absolute proximal reabsorption; acute phase reaction or reactant; air-purifying respirator; amebic prevalence rate; anatomic porous replacement; anterior pituitary reaction; average payment rate
APRAIS Acute Phase Reactions and Ischemic Coronary Syndromes
APRAISE Antisense to Prevent Restenosis After Intervention, Stent Evaluation
aprax apraxia
APRICOT Antithrombotics in the Prevention of Reocclusion in Coronary Thrombolysis [trial]; Aspirin vs Coumadin Trial; Aspirin vs Coumadin in the Prevention of Reocclusion and Recurrent Ischemia after Successful Thrombolysis Trial
APRL American Prosthetic Research Laboratory
AProL acute promyelocytic leukemia
APRP acidic proline-rich protein; acute phase reactant protein
APRT adenine phosphoribosyl transferase
APRV airway pressure release ventilation
APS acute physiology score; adenosine phosphosulfate; advanced photon source; American Pain Society; American Pediatric Society; American Physiological Society; American Proctologic Society; American Prosthodontic Society; American Psychological Society; American Psychosomatic Society; aminopropylsilane; ammonium persulfate; analog processing stage; annual person summary [Medicare data file]; antiphospholipid antibody syndrome; attending physician's statement; Australian Psychological Society; autoimmune polyglandular syndrome; automated patent system; prostate-specific antigen
APSAC acylated plasminogen-streptokinase activator complex; anisoylated plasminogen streptokinase activator complex
APSD aorticopulmonary septal defect
APSGN acute poststreptococcal glomerulonephritis
APSIS Angina Prognosis Study in Stockholm; Angina Prognosis Study with Isoptin and Seloken [trial]
APSP assisted peak systolic pressure
APSQ Abbreviated Parent Symptom Questionnaire
APSS Association for the Psychophysiological Study of Sleep
APSU Australian Paediatric Surveillance Unit
APT Ablate and Pace Trial; alum-precipitated toxoid; aminophenylthioether; antiplatelet trials; applied potential tomography; automatic peak tracing
APTA American Physical Therapy Association
APTD Aid to Permanently and Totally Disabled
APTES g-aminopropyltriethoxysilane
APTF American Physical Therapy Foundation
APTH ambulatory blood pressure monitoring and treatment of hypertension
APTI airway pressure time index
APTT, aPTT activated partial thromboplastin time
APUD amine precursor uptake and decarboxylation
APV abnormal posterior vector; Acyrthosiphon pisum virus; amprenavir
aPV acellular pertussis vaccine
APVC anomalous pulmonary venous connection
APW alkaline peptone water
APWS attending physician work station
AQ achievement quotient; acoustic quantification; anthraquinone; any quantity; aphasia quotient
aq aqueous; water [Lat. aqua]
AQAB acquired abnormality [UMLS]
AQCESS Automated Quality of Care Evaluation Support System
AQIS Australian Quarantine and Inspection Service
AQL acceptable quality level
AQLQ Asthma Quality of Life Questionnaire
AQMS acute quadriplegic myopathy syndrome
AQP aquaporin
AQS additional qualifying symptoms
aqu aqueous
AR absolute risk; acceptable risk; accounts receivable; achievement ratio; actinic reticuloid [syndrome]; active resistance; acute rejection; acute relapse; adherence ratio; admission rate; admitting room; adrenergic receptor; adrenodoxin reductase; airway resistance; alarm reaction; alcohol related; alkali reserve; allergic rhinitis; allowance region [radiotherapy]; alloy restoration; ambulance report; amphiregulin; amplitude ratio; analytical reagent; androgen receptor; anterior root; aortic regurgitation; apical-radial; Argyll Robertson [pupil]; aromatase; arsphenamine; articulare; artificial respiration; ascorbate reductase; assisted respiration; at risk; atrial rate; atrial reversal; atrophic rhinitis; augmented reality [computer graphics]; autoradiography; autoregressive; autosomal recessive
A1R adenosine A1 receptor
Ar argon; articulare
Ar relative atomic mass
ar aromatic
A/R apical/radial
A&R advised and released
ARA Academy of Rehabilitative Audiometry; acetylene reduction activity; adenine regulating agent; American Rheumatism Association; anorectal agenesis; antireticulin antibody; aortic root angiogram; arabinose; Associate of the Royal Academy; Axenfeld-Rieger anomaly
ara arabinose
ara-A adenine arabinoside
Ara-C arabinosylcytidine
ara-C cytosine arabinose; cytosine arabinoside
ARAL adjustment reaction to adult life
ARAM antigen recognition activation motif
ARAMIS American Rheumatism Association Medical Information System
ARAO angiographic area of right anterior oblique projection
ARAS ascending reticular activating system
ara-U arabinosyluracil
ARAV Araguari virus
ARB adrenergic receptor binder; angiotensin receptor blocker
arb arbitrary unit
ARBD alcohol-related birth defects
ARBV Arbia virus
ARC absolute reticulocyte count; accelerating rate calorimetry; Accreditation Review Council; acquired immunodeficiency syndrome-related complex; active renin concentration; AIDS-related complex; American Red Cross; anomalous retinal correspondence; antigen reactive cell; arcuate; Arthritis Rehabilitation Center; arthrogryposis-renal dysfunction-cholestasis [syndrome]; Association for Retarded Children; atypical reparative changes; automatic exposure control
ARCA acquired red cell aplasia
ARCD age-related cognitive decline
ARCH Amiodarone Reduces Coronary Artery Bypass Grafting Hospitalization [trial]; automated record for child health
ARCI Addiction Research Center Inventory
ARCOS Auckland Region Coronary or Stroke [study]
ARCS Associate of the Royal College of Science; Atherosclerosis Risk in Communities Study
ARC-ST Accreditation Review Council for Educational Programs in Surgical Technology
ARD absolute reaction of degeneration; acute radiation disease; acute respiratory disease; adult respiratory distress; allergic respiratory disease; ancillary report display; anorectal dressing; aortic root diameter; arthritis and rheumatic diseases; atopic respiratory disease
AR-DLMD autosomal recessive Duchenne-like muscular dystrophy
ARDMS American Registry of Diagnostic Medical Sonographers
ARDS acute respiratory distress syndrome; adult respiratory distress syndrome
ARE active-resistive exercises; AIDS-related encephalitis; antioxidant response element
AREDS Age-Related Eye Disease Study
AREDYLD acrorenal field defect, ectodermal dysplasia, lipoatrophic diabetes [syndrome]
AREPA acetazolamide-responsive familial paroxysmal ataxia
ARES antireticulo-endothelial serum
AREV Advanced Revelations [platform for database distribution]
ARF acute renal failure; acute respiratory failure; acute rheumatic fever; Addiction Research Foundation; ambulance report form; area resource file
ARFC active rosette-forming T-cell; autologous rosette-forming cell
ARFD acrorenal field defect
AR-FSP autosomal recessive familial spastic paraplegia
ARG, Arg arginine
arg arginine; silver [Lat. argentum]
ARGAMI Argatroban Compared with Heparin in Myocardial Infarction Treated with Recombinant Tissue Plasminogen Activator
ARGS antitrypsin-related gene sequence
ArGV Artogeia rapae granulovirus
ARI absolute risk increase; activation-recovery interval; acute renal insufficiency; acute respiratory illness; airway reactivity index; aldolase reductase inhibitor; annual rate of infection; anxiety reaction, intense
ARIA acetylcholine receptor-inducing activity; allergic rhinitis and its impact on asthma; automated radioimmunoassay
ARIC Atherosclerosis Risk in Communities [study]
ARIF Aggressive Research Intelligence Facility [UK]
ARIMA autoregressive integrated moving average
ARIS Andrology Research Information System; Anturan Reinfarction Italian Study; auto-regulated inspiratory support
Ar Kr argon-krypton [laser]
ARKV Arkonam virus
ARL Association of Research Libraries; average remaining lifetime
ARLD alcohol-related liver disease
AR-LGMD autosomal recessive limb muscular dystrophy
ArLV artichoke latent virus
ArLVM artichoke latent virus M
ArLVS artichoke latent virus S
ARM adrenergic receptor material; advanced respiratory mechanics; aerosol rebreathing method; ambulatory renal monitor; anorectal manometry; anxiety reaction, mild; arginine-rich motif; Armenian [hamster]; artificial rupture of membranes; associations rule mining [algorithm]; atomic resolution microscopy
ARMA autoregressive moving average
ARMD age-related muscle degeneration
ARMS access by radial artery multilink stent; adverse reaction monitoring system; amplification refractory mutation system
ARMV Arumateua virus
ARN acute renal necrosis; acute retinal necrosis; arcuate nucleus; Association of Rehabilitation Nurses
ARNMD Association for Research in Nervous and Mental Diseases
ARNP Advanced Registered Nurse Practitioner
ARNSHL autosomal recessive non-syndromic hearing loss
ARNT aryl hydrocarbon nuclear translocator; aryl hydrocarbon receptor nuclear translocator
ARNV Aruana virus
ARO adjusted relative odds; Associate for Research in Ophthalmology
AROA autosomal recessive ocular albinism
AROAV Aroa virus
AROM active range of motion; artificial rupture of membranes
arom aromatic
ARP absolute refractory period; address resolution protocol; American Registry of Pathologists; anticipated recovery path; apolipoprotein regulatory protein; assay reference plasma; assimilation regulatory protein; atrial refractory period; at risk period; automaticity recovery phase
ARPA Advanced Research Projects Agency
ARPANET Advanced Research Projects Agency Network
ARPC Akaike relative power contribution
ARPD autosomal recessive polycystic disease
ARPES angular resolved photoelectron spectroscopy
ARPKD autosomal recessive polycystic kidney disease
ARPT American Registry of Physical Therapists
ARR absolute risk reduction; aortic root replacement
arr arrest, arrested
ARRC Associate of the Royal Red Cross
ARREST Amiodarone in Out-of-Hospital Resuscitation of Refractory Sustained Ventricular Tachyarrhythmia; Amsterdam Resuscitation Study
ARRP autosomal recessive retinitis pigmentosa
ARRS American Roentgen Ray Society
ARRT American Registry of Radiologic Technologists
ARS acquiescence response scale; acute radiation syndrome or sickness; adult Reye's syndrome; alcohol-related seizures; alizarin red S; American Radium Society; American Rhinologic Society; antirabies serum; arsphenamine; arylsulfatase; Atherogenic Risk Study; autonomously replicating sequence
Ars arsphenamine
ARSA American Reye's Syndrome Association; arylsulfatase A
ARSAC Administration of Radioactive Substances Advisory Committee
ARSACS autosomal recessive spastic ataxia of Charlevoix-Saguenay
ARSB arylsulfatase B
ARSC arylsulfatase C; Associate of the Royal Society of Chemistry
ARSM acute respiratory system malfunction
ARSPH Associate of the Royal Society for the Promotion of Health
ART absolute retention time; Accredited Record Technician; Achilles reflex time; acoustic reflex test; acoustic reflex threshold; adaptive resonance theory; algebraic reconstruction technique; algebraic reconstructive technique; AngioJet Rapid Thrombectomy Catheter Study; antiretroviral therapy; artery; assisted reproductive technique; automated radiation therapy; automated reagin test; automaticity recovery time
art artery, arterial; articulation; artificial
ARTF artificial
arth arthritis
artic articulation, articulated
artif artificial
ARTIS Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome [HIV/AIDS] Treatment Information Service [NLM database]
ARTISTIC Angiorad Radiation Technology for In-Stent Restenosis Trial in Coronaries
ARTMAP adaptive resonance theory mapping
Art O2 arterial oxygen flow
ARTS Arterial Revascularization Therapies Study
ARU arthritis rehabilitation unit
ARUAV Aruac virus
ARV acquired immunodeficiency syndrome-related virus; Adelaide River virus; anterior right ventricle; antiretroviral; avian orthoreovirus; avian reovirus
ARV-A aquareovirus A
ARV-B aquareovirus B
ARV-C aquareovirus C
ARVD arrhythmogenic right ventricular dysplasia
ARV-D aquareovirus D
ARV-E aquareovirus E
ARV-F aquareovirus F
ARVP arginine-vasopressin
ARX autoregressive with exogenous input [model]
ARZAP archive zap process [database element]
AS above scale; absence of seizures; access service [to health information]; acetylstrophanthidin; acidified serum; acoustic schwannoma; acoustic stimulation; active sarcoidosis; active sleep; Adams-Stokes [disease]; adolescent suicide; aerosol sensitivity; aerosol sensitization; allele-specific; Alport syndrome; alveolar sac; amphetamine sulfate; amyloid substance; anabolic steroid; anal sphincter; androsterone sulfate; Angelman syndrome; angiosarcoma; ankylosing spondylitis; anorexia site [database, Italy]; anovulatory syndrome; anterior synechia; anteroseptal; anterosuperior; antiserum; antisocial; antistreptolysin; antral spasm; anxiety state; aortic sound; aortic stenosis; approaching significance [statistical]; aqueous solution; aqueous suspension; archives server; area of stenosis; arteriosclerosis; artificial sweetener; aseptic meningitis; asparagine synthetase; Asperger syndrome; assisted suicide; astigmatism; asymmetric; atherosclerosis; atrial septum; atrial stenosis; atropine sulfate; audiogenic seizure; Auto-Suture; left ear [Lat. auris sinistra; JCAHO unapproved abbreviation]
As arsenic; astigmatism; asymptomatic
A(s) asplenia syndrome
As ampere second
A/s ampere per second
As shifted ligand concentration [amount/volume]
aS absiemens
as left ear [Lat. auris sinistra]
ASA acetylsalicylic acid; active systemic anaphylaxis; acute severe asthma; Adams-Stokes attack; ambulatory services architecture; American Society of Anesthesiologists; American Standards Association; American Surgical Association; aminosalicylic acid; anterior spinal artery; antibody to surface antigen; argininosuccinic acid; arylsulfatase-A; aspirin-sensitive asthma; asthma-nasal polyps-aspirin intolerance [triad]
ASAAC Acetylsalicylic Acid Aorto-Coronary Bypass Surgery; Acetylsalicylic Acid vs Anticoagulants [study]
ASAAD American Society for the Advancement of Anesthesia in Dentistry
ASAC acidified serum-acidified complement
ASAH antibiotic sterilized aortic valve homograft
ASAHP American Society of Allied Health Professions
ASAIO American Society for Artificial Internal Organs
ASAL arginosuccinic acid lyase
ASAP Academic Strategic Alliance Program; Acetylsalicylic Acid Persantine [study]; American Society for Adolescent Psychology; apparatus for sensing accuracy of position; arbitrary signatures from amplification profiles; Areawide Stroke Awareness Program; as soon as possible; Azimilide Supraventricular Arrhythmia Program [trial]
ASAPS American Society of Aesthetic Plastic Surgery
ASAS Anderson Symptom Assessment Scale; argininosuccinate synthetase
ASAT aspartate aminotransferase
ASB American Society of Bacteriologists; anencephaly-spina bifida [syndrome]; anesthesia standby; Anxiety Scale for the Blind; asymptomatic bacteriuria
ASBMT American Society for Blood and Marrow Transplantation
ASBS American Society for Bariatric Surgery
ASBV, ASBVd avocado sunblotch viroid
ASC acetylsulfanilyl chloride; acute suppurative cholangitis; altered state of consciousness; ambulatory surgical center; American Society of Cytology; anterior subcapsular cataract; antibody-secreting cell; antigen-sensitive cell; ascorbate, ascorbic acid; asthma symptom checklist; auditory sequence comparison; automatic sensitivity control
asc anterior subcapsular; ascending
ASCAD atherosclerotic coronary artery disease
ASCAo ascending aorta
ASCB Asymptomatic Cervical Bruit [study]
ASCH American Society of Clinical Hypnosis
ASCI Accelerated Strategic Computing Initiative; acute spinal cord injury; American Society for Clinical Investigation; automated stress relaxation and creep indentation
ASCIA American Spinal Cord Injury Association
ASCII American Standard Code for Information Interchange
ASCLT American Society of Clinical Laboratory Technicians
ASCMS American Society of Contemporary Medicine and Surgery
ASCN American Society for Clinical Nutrition
ASCO American Society of Clinical Oncology; American Society of Contemporary Ophthalmology
ASCOT Anglo-Scandinavian Cardiac Outcomes Trial; a severity characterization of trauma
ASCOTA American Student Committee of the Occupational Therapy Association
ASCP American Society of Clinical Pathologists; American Society of Consulting Pharmacists
AsCPV Actias selene cypovirus; Agrotis segetum cypovirus
ASCR American Society of Chiropodical Roentgenology
ASCS admissions scheduling system
ASCT autologous stem cell transplantation
ASCUS atypia of squamous cells of undetermined significance
ASCUS-H atypical squamous cell of undetermined significance, high-grade squamous intraepithelial lesion
ASCUS-L atypical squamous cell of undetermined significance, low-grade squamous intraepithelial lesion
ASCVD arteriosclerotic cardiovascular disease; atherosclerotic cardiovascular disease
ASD adaptive seating device; aldosterone secretion defect; Alzheimer senile dementia; antisiphon device; argininosuccinic acid synthetase deficiency; arthritis syphilitica deformans; arthroscopic subacromial decompression; atrial septal defect
ASDB Active Substance Database; Annotation and Similarity [protein] Database
A-SDC anomaly-symptomatic deformity complex
ASDC American Society of Dentistry for Children; Association of Sleep Disorders Centers
ASDE Accelerated Strategic Computing Initiative [ASCI] Simulation Development Environment
ASDH acute subdural hemorrhage or hematoma
ASDOS Atrial Septal Defect Occlusion System [study]
ASDP anal sphincter dysplasia
ASDS American Society for Dermatological Surgery
ASE acute stress erosion; American Society of Electrocardiography; application service element; axilla, shoulder, and elbow
ASEX Arizona Sexual Experiences Scale
ASF African swine fever; aniline-sulfur-formaldehyde [resin]
ASFR age-specific fertility rate
ASFV African swine fever virus
ASG advanced cell group; American Society for Genetics; Army Surgeon General; aspermiogenesis
ASGBI Association of Surgeons of Great Britain and Ireland
ASGE American Society for Gastrointestinal Endoscopy
ASGP asialoglycoprotein
AS/GP antiserum, guinea pig
ASGR asialoglycoprotein receptor
ASGV apple stem grooving virus
ASH Action on Smoking and Health; aldosterone-stimulating hormone; American Society of Hematology; ankylosing spinal hyperostosis; antistreptococcal hyaluronidase; asymmetric septal hypertrophy
AsH astigmatism, hypermetropic
A&Sh arm and shoulder
ASHA American School Health Association; American Social Health Association; American Speech and Hearing Association
ASHAC acquired immunodeficiency syndrome self-help and care
ASHBEAMS American Society of Hospital-Based Emergency Aeromedical Services
ASHBM Associate Scottish Hospital Bureau of Management
ASHCRM American Society of Health Care Risk Managers
ASHCSP American Society for Hospital Central Service Personnel [of AHA]
ASHCVD atherosclerotic hypertensive cardiovascular disease
ASHD arteriosclerotic heart disease; atrioseptal heart disease
ASHE American Society for Hospital Engineering
ASHET American Society for Health Manpower Education and Training
ASHFSA American Society for Hospital Food Service Administrators
ASHG American Society for Human Genetics
ASHI Association for the Study of Human Infertility
ASHL Association of Scottish Health Science Librarians
ASHM Australasian Society for Human Immunodeficiency Virus Medicine
ASHN acute sclerosing hyaline necrosis
AS/Ho antiserum, horse
ASHP American Society for Hospital Planning; American Society of Hospital Pharmacists
ASHPA American Society for Hospital Personnel Administration
ASHT American Society of Hand Therapists
ASHV Arctic squirrel hepatitis virus
ASI Addiction Severity Index; anxiety state inventory; anxiety status inventory; arthroscopic screw installation
a-Si amorphous silicon
ASIA American Spinal Injury Association
ASIC acid sensing ion channel; application-specific integrated circuit
aSi/CsI cesium iodide and amorphous silicon [x-ray detector]
ASIF Association for Study of Internal Fixation
ASII American Science Information Institute
ASIM American Society of Internal Medicine
ASIP atypical protein kinase C isotype-specific interacting protein
ASIR age-standardized incidence rate
ASIS American Society for Information Science; American Study of Infarct Survival; Angina and Silent Ischemia Study; average severity of index score; anterior superior iliac spine
ASIST Atenolol Silent Ischemia Trial
ASK anomalous state of knowledge; antistreptokinase; Australian Streptokinase [trial in stroke]
ASL angiosarcoma of liver; antistreptolysin; argininosuccinate lyase
ASLIB Association of Special Libraries and Information Bureau
ASLM American Society of Law and Medicine
ASLN Alport syndrome-like hereditary nephritis
ASLO antistreptolysin O
ASLT antistreptolysin test
ASLV avian sarcoma and leukosis virus
ASM acid sphingomyelinase; active shape model [radiological image]; age-specific mortality; airway smooth muscle; American Society for Microbiology; angular second moment; anterior scalenus muscle
AsM astigmatism, myopic
asm age-specific mortality
ASMA Aerospace Medical Association; antismooth muscle antibody
ASMC arterial smooth muscle cell
ASMD anterior segment mesenchymal dysgenesis; atonic sclerotic muscle dystrophy
ASME Association for the Study of Medical Education
ASMI anteroseptal myocardial infarct
As/Mk antiserum, monkey
ASMPA Armed Services Medical Procurement Agency
ASMR age-standardized mortality ratio
ASMS archival [imaging] storage management system
ASMT acetylserotonin methyltransferase; American Society for Medical Technology
ASMTY acetylserotonin methyltransferase Y
ASN abstract syntax notation; alkali-soluble nitrogen; American Society of Nephrology; American Society of Neurochemistry; arteriosclerotic nephritis; asparagine; Associate in Nursing
Asn, asn asparagine
ASO administrative services only; AIDS service organization; allele-specific oligonucleoside; antistreptolysin O; arteriosclerosis obliterans
ASOD anterior segmental ocular dysgenesis
AS ON antisense oligonucleotide
ASOS American Society of Oral Surgeons
ASOT antistreptolysin-O test
ASP abnormal spinal posture; active server page or pages; active server processor; acute suppurative parotitis; acute symmetric polyarthritis; affected sibling pair; African swine pox; aged substrate plasma; alkali-stable pepsin; American Society of Parasitology; amnesic shellfish poisoning; ankylosing spondylitis; anorectal malformation, sacral bony abnormality, presacral mass [association]; antibody-specific prediction; antisocial personality; aortic systolic pressure; application service provider; area systolic pressure; asparaginase; aspartic acid
Asp aspartic acid; asparaginase
asp aspartame; aspartate, aspartic acid; aspiration; automatic signal processing
ASPA American Society of Physician Analysts; American Society of Podiatric Assistants; aspartoacylase
ASPAC Asia-Pacific [regional study]
ASPAT antistreptococcal polysaccharide test
ASPCR, AS-PCR allele-specific polymerase chain reaction
ASPD antisocial personality disorder
ASPDM American Society of Psychosomatic Dentistry and Medicine
ASPECT Anticoagulants in Secondary Prevention of Events in Coronary Thrombosis; Approach to Systematic Planning and Evaluation of Clinical Trials
ASPEN American Society for Parenteral and Enteral Nutrition
ASPG antispleen globulin
AS/PI anterior superior/posterior inferior
ASPIRE Action on Secondary Prevention by Intervention to Reduce Events
ASPM American Society of Paramedics
ASPO American Society for Psychoprophylaxis in Obstetrics; American Society of Pediatric Otolaryngology
ASPP Association for Sane Psychiatric Practices
ASPREN Australian Sentinel Practice Research Network
ASPRS American Society of Plastic and Reconstructive Surgeons
ASPS advanced sleep phase syndrome; Australian Swedish Pindolol Study
ASPSOM adaptive structure probabilistic self-organizing map
ASPV apple stem pitting virus
ASPVD atherosclerotic peripheral vascular disease; atherosclerotic pulmonary vascular disease
ASQ Abbreviated Symptom Questionnaire; Anxiety Scale Questionnaire
ASR adrenal/spleen ratio; age-standardized rate; aldosterone secretion rate; antistreptolysin reaction; automated speech recognition
AS/Rab antiserum, rabbit
ASRT American Society of Radiologic Technologists; American Society of Registered Technologists
ASS Aarskog-Scott syndrome; acute serum sickness; acute spinal stenosis; acute stroke study; anterior superior spine; argininosuccinate synthetase; Auckland Stroke Study
ASSA, ASSAS aminopterin-like syndrome sine aminopterin
ASSC acute splenic sequestration crisis
AS-SCORE age, stage of disease, physiological system involved, complications, response to therapy
ASSENT Assessment of the Safety and Efficacy of a New Thrombolytic Agent
ASSERT [improving] Alcohol and Substance Abuse Services and Educating Providers to Refer Patients to Treatment
ASSET Anglo-Scandinavian Study of Early Thrombolysis; Atorvastatin Simvastatin Safety and Efficacy Trial
ASSH American Society for Surgery of the Hand
ASSI Accurate Surgical and Scientific Instruments
ASSIA Applied Social Science Index and Abstracts [UK]
assim assimilate, assimilation
ASSIST American Stop Smoking Intervention Study
ASSO American Society for the Study of Orthodontics
Assoc association, associate
ASSP argininosuccinate synthetase pseudogene
ASSR adult situation stress reaction; auditory steady-state response
ASSURE A Stent vs Stent Ultrasound Remodeling Evaluation
ASSVd Apple scar skin viroid
ASSX argininosuccinate synthetase pseudogene
AST above selected threshold; allele-specific transcript; allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antimicrobial susceptibility test; antistreptolysin test; aspartate aminotransferase (SGOT); Association of Surgical Technologists; astigmatism; atrial overdrive stimulation rate; audiometry sweep test; Australian Streptokinase Trial
Ast astigmatism
ASTA anti-alpha-staphylolysin
ASTAM American Society for Testing and Materials
ASTECS Antenatal Steroid Therapy in Elective Cesarean Section [study]
ASTH, Asth asthenopia
ASTHO Association of State and Territorial Health Officers; Association of State and Territorial Health Officials
ASTI antispasticity index
ASTM American Society for Testing and Materials
ASTMH American Society of Tropical Medicine and Hygiene
ASTO antistreptolysin O
as tol as tolerated
ASTPHND Association of State and Territorial Public Health and Nutrition Directors
ASTRO American Society for Therapeutic Radiology and Oncology
AstV Astrovirus
ASTZ antistreptozyme
ASUB active substance [UMLS]
ASV anodic stripping voltammetry; antisiphon valve; anti-snake venom; autologous saphenous vein; avian sarcoma virus
ASV-CT10 avian sarcoma virus CT10
ASVO American Society of Veterinary Ophthalmology
ASVPP American Society of Veterinary Physiologists and Pharmacologists
ASW artificial sweetener
ASWC averaged spike and wave complex [EEG]
Asx amino acid that gives aspartic acid after hydrolysis; asymptomatic
asym asymmetry, asymmetric
AT abdominal thrusts; Achilles tendon; Achard-Thiers [syndrome]; achievement test; activity training; acute thrombosis; adaptive thermogenesis; adenine-thymine; adenine-thyronine; adipose tissue; adjunctive therapy; adnexal torsion; air temperature; allergy treatment; amino acid transporter; aminotransferase; aminotriazole; amitriptyline; anaerobic threshold; anaphylotoxin; angiotensin; anterior tibia; antithrombin; antitrypsin; antral transplantation; applanation tonometry; ataxia-telangiectasia; atmosphere; atraumatic; atresia, tricuspid; atrial tachycardia; atrial tumor; atropine; attenuate, attenuation; autoimmune thrombocytopenia; axonal terminal; old tuberculin [Gr. alt Tuberkulin]
A-T ataxia-telangiectasia
AT1 angiotensin II type 1
AT10 dihydrotachysterol
AT I angiotensin I
AT II angiotensin II
AT III angiotensin III; antithrombin III
At acidity, total; angiotensin; antithrombin; astatine; atrium, atrial
At amount in tissue
at air tight; atom, atomic; technical atmosphere
ATA alimentary toxic aleukia; American Telemedicine Association; American Thyroid Association; aminotriazole; antithymic activity; antithyroglobulin antibody; anti-Toxoplasma antibody; atmosphere absolute; aurintricarboxylic acid
ATACS Antithrombotic Therapy in Acute Coronary Syndromes [trial]
ATAI acute traumatic aortic injury
ATB Articulated Total Body [model]; at the time of the bomb [A-bomb in Japan]; atrial tachycardia with block
Atb antibiotic
ATBC Alpha-Tocopherol/Beta Carotene [cancer prevention study]
ATC activated thymus cell; alpha tocopherol; anaplastic thyroid carcinoma; Anatomical Therapeutic Chemical [classification]; around the clock; certified athletic trainer
ATCase aspartate transcarbamoylase
ATCC American Type Culture Collection
ATCL adult T-cell leukemia or lymphoma
ATCS anterior tibial compartment syndrome
ATD Alzheimer-type dementia; androstatrienedione; anthropomorphic test dummy; antithyroid drug; aqueous tear deficiency; asphyxiating thoracic dystrophy
ATDC Association of Thalidomide Damaged Children
ATDNet Advanced Technology Demonstration Network
ATDP Attitude Toward Disabled Persons [scale]
ATE acute toxic encephalopathy; acute toxicity end point; adipose tissue extract; autologous tumor extract
ATEE N-acetyl-1-tyrosyl-ethyl ester
ATEM analytic transmission electron microscopy
Aten atenolol
ATEST Atenolol and Streptokinase Trial
ATEV Aphodius tasmaniae entomopoxvirus
ATF activating transcription factor; anterior talofibular [ligament]; ascites tumor fluid
At fib atrial fibrillation
ATG adenine-thymidine-guanine; advanced technology group; antihuman thymocyte globulin; antithrombocyte globulin; antithymocyte globulin; antithyroglobulin
ATGAM antithymocyte gamma-globulin
AT/GC adenine-thymine/guanine-cytosine [ratio]
ATH acetyl-tyrosine hydrazide; alkylated thiohydantoin
ATh Associate in Therapy
Athsc atherosclerosis
AtHV ateline herpesvirus
ATI abdominal trauma index; attitude-treatment interaction
ATIAIS Anturane Transient Ischemic Attack Italian Study
ATIME Accupril Titration Interval Management Evaluation [trial]
ATL Achilles tendon lengthening; active template library; acute T-cell leukemia; adult T-cell leukemia; anterior tricuspid leaflet; antitension line; atypical lymphocyte
ATLA adult T-cell leukemia virus-associated antigen; alternatives to laboratory animals
ATLANTIC Angina Treatment, Lasers, and Normal Therapy in Comparison [trial]
ATLANTIS Alteplase Thrombolysis for Acute Noninterventional Therapy in Ischemic Stroke
ATLAS Adolescents Training and Learning to Avoid Steroids; Aspirin and Ticlid vs Anticoagulants for Stents [study]; Assessment of Treatment with Lisinopril and Survival [trial]
ATLAST Antiplatelet Therapy vs Lovenox Plus Antiplatelet Therapy for Patients with Increased Risk of Stent Thrombosis; Aspirin/Ticlopidine vs Low-Molecular-Weight Heparin/Aspirin/Ticlopidine Stent Trial
ATLL adult T-cell leukemia/lymphoma
ATLP anterior titanium thoracolumbar locking plate
ATLS acute tumor lysis syndrome; Advanced Tool for Learning Anatomical Structures; advanced trauma life support
ATLV adult T-cell leukemia virus
ATM abnormal tubular myelin; acute transverse myelopathy; adaptive template moderated; advanced trauma management; Arizona Asynchronous Transfer Mode [network]; asynchronous transfer mode; asynchronous transfer protocol; ataxia-telangiectasia-mutated [protein]; atmosphere; average time of maintenance
atm standard atmosphere
ATMA Amiodarone Trials Meta Analysis; antithyroid plasma membrane antibody
ATMI application transaction manager interface
atmos atmospheric
ATMTN asynchronous transfer mode teleradiology network
ATN acute tubular necrosis; Adolescent Trials Network; augmented transition network
ATNC atraumatic normocephalic
at no atomic number
ATNR asymmetric tonic neck reflex
A-to-D analog-to-digital
ATOT total anions
ATP addiction treatment program; adenosine triphosphate; ambient temperature and pressure; annual transmission potential; antitachycardia pacing; Arizona Telemedicine Program; autoimmune thrombocytopenic purpura
A-TP adsorbed test plasma
AT-P antitrypsin-Pittsburgh
AtP attending physician
ATPA 2-amino-3-(hydroxy-5-tert-butylisoxazol-4-yl) propanoic acid
AT-PAS aldehyde-thionine-periodic acid Schiff [test]
ATPase adenosine triphosphatase
ATPD dried at ambient temperature and pressure
ATP-2Na adenosine triphosphate disodium
ATPS ambient temperature and pressure, saturated
ATR Achilles tendon reflex; Achilles tendon rupture; acid-tolerance response; alpha-thalassemia-mental retardation [syndrome]; ataxia-telangiectasia and rad3-related [protein]; attenuated total reflectance; automatic term recognition; axial trunk rotation
atr atrophy
ATR1 alpha-thalassemia mental retardation [syndrome] type 1
ATR2 alpha-thalassemia mental retardation [syndrome] type 2
ATRA all-transretinoic acid
ATRAMI Autonomic Tone and Reflexes After Myocardial Infarction [trial]
ATRAS Adrenal Test Retrieval and Analysis System
Atr fib atrial fibrillation
ATRX, ATR-X X-linked alpha-thalassemia mental retardation [syndrome]
ATS Achard-Thiers syndrome; acid test solution; alpha-D-tocopherol acid succinate; American Thoracic Society; American Trauma Society; American Trudeau Society; antirat thymocyte serum; antitetanus serum; antithymocyte serum; anxiety tension state; arteriosclerosis; autologous transfusion system
ATSDR Agency for Toxic Substances and Disease Registry
ATT arginine tolerance test; aspirin tolerance time
att attending
atten attenuated
ATTMH Australian Therapeutic Trial of Mild Hypertension
ATTRACT application of telemedicine taking rapid advantage of cable television
ATV Abelson virus transformed; Ambystoma tigrinum stebbinsi virus; antisense target validation; atazanavir; avian tumor virus
at vol atomic volume
at wt atomic weight
ATX associated expressions [UMLS]
ATx adult thymectomy
atyp atypical
ATZ acetazolamide; atypical transformation zone
AU allergenic unit; Alzheimer unit;
Au Australia [antigen]; authorization
AUA American Urological Association; asymptomatic urinary abnormalities
Au Ag Australia antigen
AUB abnormal uterine bleeding
AUC area under the curve
AUCextra extrapolated area under the curve
AuCPV Aglais urticae cypovirus
AUCSS steady-state area under the curve
AUD arthritis of unknown diagnosis
aud auditory
AUDEX automated urologic diagnostic expert [ultrasonographic imaging]
AUDIT alcohol use disorders identification test
AUDIT-C alcohol use disorders identification test-alcohol consumption questions
aud-vis audiovisual
AUG acute ulcerative gingivitis; adenosine-uracil-guanine
AUGH acute upper gastrointestinal hemorrhage
AuHAA Australia hepatitis-associated antigen
AUI Alcohol Use Inventory
AUL acute undifferentiated leukemia
AUMC area under the first moment curve
AUMCextra extrapolated area under the first moment curve
AUO amyloid of unknown origin
AuP Australian antigen protein
AUPHA Association of University Programs in Health Administration
AUR Association of University Radiologists
aur, auric auricle, auricular
AURAV Aura virus
AURT Association of University Radiologic Technicians
AUS acute urethral syndrome; artificial urinary sphincter
AuS Australia serum hepatitis
aus, ausc auscultation
AuSH Australia serum hepatitis
AUST Australian Urokinase Stroke Trial
AUT authentication
AutoCAD auto-computer assisted diagnosis [software]
Auto-PEEP self-controlled positive end-expiratory pressure
AUV anterior urethral valve
aux auxiliary
AV adeno-associated virus; adenovirus; Adriamycin and vincristine; air velocity; allergic vasculitis; anteroventral; anteversion; anticipatory vomiting; antivirin; aortic valve; arenavirus; arteriovenous; artificial ventilation; ascovirus; asparagus virus; assisted ventilation; atrioventricular; audiovisual; augmented vector; average; aviation medicine; avoirdupois
A-V arteriovenous; atrioventricular
A/V ampere/volt; arteriovenous
Av average; avoirdupois
aV abvolt
av air velocity; average; avulsion
AVA activity vector analysis; anthrax vaccine adsorbed; antiviral antibody; aortic valve annulus; aortic valve area; aortic valve atresia; Arracacha virus A; arteriovenous anastomosis
AvaCPV Agraulis vanillae cypovirus
AV/AF anteverted, anteflexed
AVAV Avalon virus
AVB Arracacha virus B; atrioventricular block
AVC aberrant ventricular conduction; Academy of Veterinary Cardiology; aortic valve closure; arteriovenous communication; Association of Vitamin Chemists; associative visual cortex; atrioventricular canal; automatic volume control
AVCN anteroventral cochlear nucleus
AVCO2R arteriovenous carbon dioxide removal
AVCS atrioventricular conduction system
AVCx atrioventricular circumflex branch
AVD aortic valvular disease; apparent volume of distribution; Army Veterinary Department; atrioventricular dissociation
AvDNV Agraulis vanillae densovirus
AVDO2 arteriovenous oxygen saturation difference
AVDO2B arteriovenous oxygen saturation difference, basal
AVDP average diastolic pressure
avdp avoirdupois
AVE aortic valve echocardiogram
ave, aver average
AVED ataxia with vitamin E deficiency
AVERT Atorvastatin vs Revascularization Treatment [trial]
AVEU AIDS Vaccine Evaluation Unit
AVF antiviral factor; arteriovenous fistula
aVF automated volt foot
aVF unipolar limb lead on the left leg in electrocardiography
AVG ambulatory visit group; aortic valve gradient
avg average
AVH acute viral hepatitis
AVHD acquired valvular heart disease
AVHS acquired valvular heart syndrome
AVI air velocity index; Association of Veterinary Inspectors; atrioventricular interval; audio-video interleave
AviCPV Arctia villica cypovirus
AVID Amiodarone vs Implantable Defibrillators [trial]; Angiography vs Intravascular Ultrasound Directed Coronary Stent Placement [trial]; Antiarrhythmics vs Implantable Defibrillators [study]
AVIR aortic valve replacement
AVJ atrioventricular junction
AVJR atrioventricular junction rhythm
AVJRe atrioventricular junctional reentrant
AVL automatic vehicle locator
aVL automated volt left
aVK unipolar limb lead on the left arm in electrocardiography
AVLINE Audiovisuals Online [NLM database]
AVLJ absolute value of logarithm of Jacobian
AVM arteriovenous malformation; atrioventricular malformation; avermectin; aviation medicine
AVMA American Veterinary Medical Association
AVN acute vasomotor nephropathy; atrioventricular nodal [conduction]; atrioventricular node; avascular necrosis
AVNA atrioventricular node artery
AVND atrioventricular node dysfunction
AVNFH avascular necrosis of the femoral head
AVNFRP atrioventricular node functional refractory period
AVNR atrioventricular nodal reentry
AVNRT atrioventricular node reentry tachycardia
AVO aortic valve opening; aortic valve orifice; atrioventricular opening
AVO2 arteriovenous oxygen ratio
AVOA amorphous vascular occluding agent
AVP abnormal vasopressin; actinomycin-vincristine-Platinol; ambulatory venous pressure; antiviral protein; aortoventriculoplasty; aqueous vasopressin; arginine-vasopressin; arteriovenous passage time
AVP-NPII arginine vasopressin-neurophysin II
AVPU alert, verbal, painful, unresponsive [neurologic test]
AVR accelerated ventricular rhythm; antiviral regulator; aortic valve replacement
aVR automated volt right
aVR unipolar limb lead on the right arm in electrocardiography
AVREO avian reovirus
AVRI acute viral respiratory infection
AVRP atrioventricular refractory period
AVRR antiviral repressor regulator
AVRT atrioventricular reciprocating tachycardia; atrioventricular reentrant tachycardia; atrioventricular reentry
AVS Advanced Visual Systems; aortic valve stenosis; application visualization system; arteriovenous shunt; auditory vocal sequencing
AVSD atrioventricular septal defect
AVSV aortic valve stroke volume
AVT Allen vision test; arginine vasotocin; Aviation Medicine Technician
AVV atrioventricular valve
AvV Agraulis vanillae virus
Av3V anteroventral third ventricle
AVVM angiographically visualized vascular malformation
AVY Arracacha virus Y
AVZ avascular zone
AW able to work; above waist; abrupt withdrawal; airways; alcohol withdrawal; alveolar wall; anterior wall; atomic warfare; atomic weight
A&W alive and well
aw airway; water activity
AWAR anterior wall of aortic root
AWBM alveolar wall basement membrane
AWBV Ahlum waterborne virus
AWD alive with disease
AWESOME Angina with Extremely Serious Operative Mortality Evaluation
AWFM adaptive Walsh function modeling
AWG American Wire Gauge
AWGN additive white gaussian noise [telemedicine]
AWHILES All-Wales Health Information and Library Extension Service
AWI anterior wall infarction
AWIGS advanced workplace for image-guided surgery
AWL active waiting list
AWM abnormal wall motion
AWMI anterior wall myocardial infarction
AWMN Acid Waters Monitoring Network [UK]
AWMV amplitude-weighted mean velocity
AWO airway obstruction
AWOL absent without official leave
AWP airway pressure; any willing provider; average of the wholesale prices; average wholesale price
AWR absolute weighted residual; airway restriction
AWRS anti-whole rabbit serum
AWRU active wrist rotation unit
AWS Alagille-Watson syndrome; alcohol withdrawal syndrome
AWTA aniridia-Wilms tumor association
awu atomic weight unit
ax axillary; axis, axial
AxCPV anti-xanthomista cypovirus
AXD axillary dissection
AXF advanced x-ray facility
AXG adult xanthogranuloma
AXL anexelekto [oncogene]; axillary lymphoscintigraphy
AXR abdominal x-ray [examination]
AXT alternating exotropia
AYA acute yellow atrophy
AYF antiyeast factor
AYP autolyzed yeast protein
AYV Anthriscus yellows virus
AZ Aschheim-Zondek [test]; 5-azacytidine; azathioprine
Az nitrogen [Fr. azote]
AZA azathioprine; azelaic acid
AzC azacytosine
AZEV Acrobasis zelleri entomopoxvirus
AZF azoospermia factor
AzG, azg azaguanine
AZGP zinc-alpha-2-glycoprotein
AZO [indicates presence of the group ¾ N:N¾]
AZOA azaorotic acid
AZQ diaziquone
AZR alizarin
AZT Aschheim-Zondek test; azidothymidine; 3¢-azido-3¢-deoxythymidine; zidovudine (azidothymidine)
AZTEC amplitude zone time epoch coding [in ECG]
AZTMP azidothymidine monophosphate
AZT-R azidothymidine-resistant
AZT-S azidothymidine-susceptible or sensitive
AZTTP azidothymidine trithiophosphate
AZT-TP 3¢-azido-3¢-deoxythymidine triphosphate
AZU azauracil; azurocidin
AzUr 6-azauridine
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