NAD no active disease
NAS no added salt
NCV nerve conduction velocity
NED no evidence of recurrent disease
ng nanogram
NG nasogastric
NIDDM non-insulin dependent diabetes mellitus
NKA no known allergies
NKDA no known drug allergies
NMR nuclear magnetic resonance
NPO nothing by mouth
NRM no regular medications
NSAID non-steroidal anti- inflammatory drugs
NSR normal sinus rhythm
NT nasotracheal