ADL.
Activities of daily living
ABG
Arterial blood gases
ad lib
As desired
ADA
American diabetic association
AKA
Above knee amputation
A&O
Alert and oriented
AP
Angina pectoralis (chest pain)
ARF
Acute renal failure
ASA
Acetylsalicylic acid (aspirin)
AAA
Abdominal aortic aneurism
B/P
Blood pressure
BKA
Below knee amputation
BM
Bowel movement, bone marrow
BMR
Basal metabolic rate
BS
Bowel sounds, breath sounds
BUN
Blood urea nitrogen