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Letter A abb.
Medical Abbreviation Letter A
| Term | Definition |
|---|---|
| A&D | admission and discharge |
| A&P | anterior and posterior, anatomy and physiology |
| Ab | abortion |
| ABG | arterial blood gas |
| ACTH (adrenocorticotrophic hormone) | widely used in the treatment of rheumatoid arthritis, anemia, allergic states, various dermatologic diseases, and many other disorders. It is a hormone of the anterior pituitary gland. |
| ADH (antidiuretic hormone) | a hormone that decreases the production of urine by increasing the reabsorption of water by the renal tubules. |
| adm | admission |
| AHA | American Hospital Association |
| AIDS | acquired immune deficiency syndrome |
| AMA | American Medical Association, against medical advice |
| amal/ amalgam | a mixture of combination/ an alloy of mercury, silver, and other metals commonly used as a dental filling |
| ANA | American Nurses' Association |
| ANS (autonomic nervous system) | the part of the nervous system that regulates involuntary body functions, including the activity of the cardiac muscle, smooth muscles, and glands |
| ant | anterior |
| AP (apical pulse) | the heartbeat as heard with a stethoscope placed on the chest wall adjacent to the cardiac apex |
| aq, aqua | aqueous (water based) |
| ARC | AIDS related complex |
| ART | accredited records technician |
| AD | right ear |
| AS | left ear |
| Ax | axilla, axillary, armpit |
| AV (arteriovenous, artrioventricular) | pertaining to arteries and veins |
| ASHD (arteriosclerotic heart disease) | a thickening and hardening of the walls of the coronary arteries |
| ASCVD | arteriosclerotic cardiovascular disease |
| ADL | activities of daily living |
| av | average |
| AU | both ears |
| abd | abdomen, abdominal |
| ASAP | as soon as possible |
| ASA | aspirin |
| approx | approximately |
| am, AM | morning, before noon |
| as tol | as tolerated |
| amb | ambulate, walk |
| ad lib | as desired |
| __ aa | of each |
| _ a | before |
| amt | amount |
| A&W | alive and well |
| @ | at |
| ac | before meals |