Dictionary of Medical Acronyms & Abbreviations

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[ A ]

A₁ | A₂ | A₃ | A₄ | A₅ | A₆ | A₇ |

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
A_TOT 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 Australia [antigen]; authorization
AUA American Urological Association; asymptomatic urinary abnormalities
Au Ag Australia antigen
AUB abnormal uterine bleeding
AUC area under the curve
AUC_extra extrapolated area under the curve
AuCPV Aglais urticae cypovirus
AUC_SS 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
AUMC_extra 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
aV_F 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
aV_K 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
aV_R 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 — N:N—]
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