N
nitrogen, normal (strength solution)
NIDDM
non-insulin dependent diabetes mellitus
Na*
sodium
NaCl
Sodium chloride
NADA
North American Nursing Diagnosis Association
NG
nasogastric
NGT
nasogastric tube
NLN
National league for Nursing
noc.
at night
NPO
nothing by mouth
NS
normal saline
NSAIDS
nonsteroidal anti-inflammatory drugs
NSNA
National Student Nurses’ Association
NST
non-stress test
O2
oxygen
OB-GYN
obstetrics and gynecology
OCT
oxytocin challenge test
OD
right eye
OOB
out of bed
OPC
outpatient clinic
OR
operating room
os or (po)
by mouth
OS
left eye
OSHA
Occupational Safety and Health Administration