g or gm
Gram
DNR
Do not resuscitate
hs
Hour of sleep
PVD
Peripheral vascular disease
I & O
Intake & output
IM
Intramuscular
IV
Intravenous
kg
Kilogram
mg
Milligram
ml
Milliliter
mm
Millimeter
NGT
Nasogastric tube
NPO (npo)
Nothing by mouth
OTC
Over the counter
po
By mouth
prn
As needed, as often as necessary
s with horizontal line above it
Without
STAT
Immediately
tol
Tolerated
TPR
Temperature, pulse, respirations
tab.
Tablet
t.i.d.
Three times a day
VS
Vital signs
x
Times