- N -
N
nitrogen; normal
N & T
nose and throat
Na
sodium
NA
not applicable
Na2CO3
sodium carbonate
NACI
National Advisory Committee on Immunization
NaCl
sodium chloride
NaF
sodium fluoride
NaOH
sodium hydroxide
NAPA
n-acetylprocainamide
Nb
niobium
NBIL
neonatal bilirubin
NCCLS
National Committee for Clinical Laboratory Standards
NCEP
National Cholesterol Education Program
NCI
National Cancer Institute
Nd
neodymium
ng
nanogram
NGU
nongonococcal urethritis
NH4Cl
ammonium chloride
NH4OH
ammonium hydroxide
Ni
nickel
NK
natural killer
NKA
no known allergies
nL
nanoliter
NL
normal
nm
nanometer
nmol
nanomole
nmol/L
millimicromolar
NMR
nuclear magnetic resonance
No
nobelium
noc
in the night (nocturnal)
Np
neptunium
NPO
nothing by mouth
NS
normal saline; not seen; not significant
NSE
neuron specific enolase
NSR
normal sinus rhythm
NST
nonstress test
NSU
nonspecific urethritis
NTI
nonthyroidal illness; nonthyroidal index
NVD
nausea, vomiting, diarrhea
NYD
not yet diagnosed
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