A
OC
oral contraceptive
OOB
out of bed
OP
outpatient
OT
occupational therapy or therapist
OTC
over the counter
PA
posteroanterior, physician assistant
after meals
PE
physical examination
PID
pelvic inflammatory disease
PMS
premenstrual syndrome
PO
by mouth
PRN
as needed
PT
physical therapy or therapist
pt
patient
RA
rheumatoid arthritis
RBC
Red blood cell
RLE
right lower extremity
RLL
right lower lobe
RLQ
right lower quadrant
R/O
rule out
ROM
range of motion
RT
respiratory therapy or therapist
RUE
Right upper extremity
RUQ
right upper quadrant
Rx
prescription