p
post; after
P
pulse; phosphorous
PA
post-anterior (x-ray film); pernicious anemia
P.A.
physician assistant
PAC
premature atrial contraction
PAF
paroxysmal atrial fibrillation
PAME
preanesthesia medical exam
Pap smear
Papanicolaou smear
PAT
pregnancy at term; paroxysmal atrial tachycardia
path
pathology