AAA
Abdominal aortic aneurysm
AB
Abortion
ABD
Abdominal
ABG
Arterial blood gas
ABX
Antibiotics
AC
Before meals
ACS
Acute coronary syndrome
A FIB
Atrial fibrillation
AIDS
Acquired immunodeficiency syndrome
A/O x4
Alert and orientation to person place time and event
ALOC
Altered level of consciousness
ALS
Advanced life support
AKA
Above knee amputation
AMA
Against medical advice
AMI
Acute myocardial infarction
AMS
Altered mental status
AOM
Acute otitis media
AP
Anterior-posterior (ex chest X-ray)
ASA
Aspirin (acetlysalicylic acid)
AV
Atrioventrciular (block)
BAL
Blood alcohol level
BID
2x day
Bilat
Bilateral
BKA
Below knee amputation