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 x 4
alert and oriented x 4 (person, place, time, 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
asa
aspirin (acetylsalicylic acid)
av
atrioventricular block
bal
blood alcohol level
bid
2 times a day
bilat
bilateral
bka
below the knee amputation