Dictionary of Medical Acronyms & Abbreviations

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[ N ]

N₁ | N₂ | N₃ | N₄ | N₅ | N₆ | N₇ |

N/S noise to signal [ratio]; normal saline [solution]
Ns nasospinale; nerves
ns nanosecond; nonspecific; no sequelae; no specimen; not significant; nylon suture
NSA National Stroke Association; Neurological Society of America; Niger seed agar [culture medium]; normal serum albumin; no salt added; no significant abnormality; no significant anomaly; number of signals averaged
nsa no salt added
NSABP National Surgical Adjuvant Breast and Bowel Project
NSAD no signs of acute disease
NSAE non-serious adverse event; nonsupported arm exercise
NSAI nonsteroidal anti-inflammatory [drug]
NSAIA nonsteroidal anti-inflammatory agent
NSAID nonsteroidal anti-inflammatory drug
NSAM Naval School of Aviation Medicine
NSAS National Survey of Ambulatory Surgery
NSC neurosecretory cell; no significant change; nonservice connected; non-small cell; nonspecific suppressor cell; normal child with short stature
nsc nonservice connected; no significant change
NSCC National Society for Crippled Children
NSCD nonservice connected disability
NSCLC non-small-cell lung cancer
NSCS night shift call system
NSCT National Society of Cardiovascular Technologists
NSD N-acetylneuraminic acid storage disease; Nairobi sheep disease; neonatal staphylococcal disease; neurosecretory dysfunction; night sleep deprivation; nominal single dose; nominal standard dose; normal standard dose; no significant defect; no significant deficiency; no significant deviation; no significant difference; no significant disease; normal spontaneous delivery
NSDV Nairobi sheep disease virus
NSE neuron-specific enolase; nonspecific esterase; normal saline enema
nsec nanosecond
NSEP needle and syringe exchange program; nuclease-sensitive element protein
NSERC Natural Sciences and Engineering Research Council [Canada]
NSF National Science Foundation; National Service Framework; nodular subepidermal fibrosis
NSFNET National Science Foundation (NSF) [Computer] Network
NSFTD normal spontaneous full-term delivery
NSG neurosecretory granule
nsg nursing
NSGA nondominated sorting genetic algorithm
NSGC National Society of Genetic Counselors
NSGCT nonseminomatous germ cell tumor
NSGCTT nonseminomatous germ-cell tumor of the testis
NSG Hx nursing history
NSGI nonspecific genital infection
NSH National Society for Histotechnology
NSHD nodular sclerosing Hodgkin disease
NSHG National Study of Health and Growth
NSHL non-syndromic hearing loss
NSHPT neonatal severe hyperparathyroidism
NSI negative self-image; neurosensory impairment; no signs of infection/inflammation; non-syncytium-inducing
NSICU neurosurgical intensive care unit
NSIDS near sudden infant death syndrome
NSILA nonsuppressible insulinlike activity
NSILP nonsuppressible insulinlike protein
NSIVCD nonspecific intraventricular conduction delay
NSJ nevus sebaceus of Jadassohn
NSK nonsquamous keratin
NSM neurosecretory material; neurosecretory motor neuron; nonantigenic specific mediator; nutrient sporulation medium
N · s/m² newton seconds per square meter
NSMR National Society for Medical Research
NSN nephrotoxic serum nephritis; nicotine-stimulated neurophysin
NSNA National Student Nurse Association
NSND nonsymptomatic and nondisabling
NSO Neosporin ointment; nucleus supraopticus; Nursing Standard Online
NSP neuron specific protein; neurotoxic shellfish poisoning; nonstructural protein; nuclear shuttle protein; nurse scheduling problem
NSPB National Society for the Prevention of Blindness
NSPH neonatal severe hyperparathyroidism
NSPN neurosurgery progress note
NSPORT nurse-sensitive patient outcome research team
NSQ Neuroticism Scale Questionnaire; not sufficient quantitiy
NSR nasal septal reconstruction; nonspecific reaction; normal sinus rhythm; no sign of recurrence; not seen regularly
NSR/M no sign of recurrence or meta-stases
NSS Nordic Sleep Survey; normal saline solution; normal size and shape; not statistically significant; nutrition support services
NSSQ Norbeck social support questionnaire
NSSTT nonspecific ST and T [wave]
NST neospinothalamic [tract]; nonshivering thermogenesis; nonstress test; nutritional support team
NSTC National Science and Technology Council
NSTEMI non-ST segment elevation myocardial infarction
NSTI necrotizing soft tissue infection
NST-ICF nonstationary ionic channel current fluctuations
NSTT nonseminomatous testicular tumor
NSU neurosurgical unit; nonspecific urethritis
NSurg neurosurgery, neurosurgeon
NSV nonspecific vaginitis/vaginosis
NSVD normal spontaneous vaginal delivery
NSVR normalized systemic vascular resistance
NSVT nonsustained ventricular tachycardia
NSX neurosurgical examination
nsy nursery
NT nasotracheal; neotetrazolium; neurotensin; neurotoxin; neurotrophic; neutralization test; nicotine tartrate; nontender; nontumoral; normal temperature; normal tissue; normotensive; nortriptyline; not tested; N-terminal [fragment]; nourishment taken; nuchal translucency; nuclear transfer; nucleation time; nucleotidase; nucleotide; numbness and tingling
NT-3 neurotrophin 3
5´NT 5´-nucleotidase
Nt amino terminal
nt nucleotide
N&T nose and throat
NTA natural thymocytotoxic autoantibody; nitrilotriacetic acid; Nurse Training Act
NTAB nephrotoxic antibody
NTAV Ntaya virus
NTBR not to be resuscitated
NTC neotetrazolium chloride
NTCC National Type Culture Collection
NTCP noninvasive transcutaneous cardiac pacing; normal tissue complication probability
NTCT negative temperature-coefficient thermistor
NTD neural tube defect; nitroblue tetrazolium dye; noise tone difference; 5´-nucleotidase
NTE neuropathy target esterase; neurotoxic esterase; no toxic effect level; not to exceed
NTF neurotrophic factor; normal throat flora
NTFOM normal tissue complication-based figure-of-merit
NTG nitroglycerin; nitrosoguanidine; nontoxic goiter; normal triglyceridemia
NTGO nitroglycerin ointment
Nth normothermia
NTHH nontumorous, hypergastrinemic hyperchlorhydria
NTHi nontypable Haemophilus influenzae
NTI nonthyroid illness
NTIA National Telecommunications and Information Administration
NTIG nontreated immunoglobulin
NTIS National Technical Information Service
NTKR neurotrophic tyrosine kinase receptor
NTL near-total laryngectomy; non-thoracotomy lead [cardioverter-defibrillator]; nortriptyline; no time limit
NTLI neurotensin-like immunoreactivity
NTM nontuberculous mycobacteria
NTMI nontransmural myocardial infarction
NTN nephrotoxic nephritis
NTNH nontoxic, nonhemagglutinating [protein]
NTO nontarget organism
NTON National Transparent Optical Network
NTOS neurogenic thoracic outlet syndrome
NTP narcotic treatment program; National Toxicology Program; nitroprusside; nonthrombopenic purpura; normal temperature and pressure; 5´-nucleotidase; sodium nitroprusside
NT&P normal temperature and pressure
NTR negative therapeutic reaction; nitroreductase; nontranslated region; normotensive rat; nutrition
ntr nutrition
NTRC National Toxins Research Center
NTS nasotracheal suction; nephrotoxic serum; neurotensin; nicotine transdermal system; nontropical sprue; nucleus tractus solitarius
NTT nearly total thyroidectomy
NTU Navy Toxicology Unit
N-TUL internal tumescent ultrasound liposculpture
NTV nerve tissue vaccine
NTVR normal transvalvular regurgitation
nt wt net weight
NTX naltrexone
NTZ normal transformation zone
NU name unknown
nU nanounit
nu nude [mouse]
ν Greek letter nu; degrees of freedom; frequency; kinematic velocity; neutrino
NUAPS National Unstable Angina Pectoris Study
NUBS nonuniform rational B-spline
NUC nonspecific ulcerative colitis; sodium urate crystal
Nuc nucleoside
nuc nucleated
NUCARE nursing care research
nucl nucleus
NUD nonulcer dyspepsia; nursing utilization database
NUG necrotizing ulcerative gingivitis
NUGV Nugget virus
NUI number user identification
nullip nulliparous
νm nanometers
NUMA nonuniform memory access; nuclear mitotic apparatus
numc number concentration
NUPV nucleopolyhedrovirus
NURB Neville upper reservoir buffer
Nut nutrition
NUV near ultraviolet
NV nausea and vomiting; necrosis virus; negative variation; neovascularization; next visit; nonveteran; normal value; Norwalk virus; not vaccinated; not venereal; not verified; not volatile
N&V nausea and vomiting
Nv naked vision
nv new variant
NVA near visual acuity
NVB neurovascular bundle
NVCA National Venereology Council of Australia
nvCJD new variant Creutzfeldt-Jakob disease
NVD nausea, vomiting, and diarrhea; neck vein distention; neovascularization of the disk; neurovesicle dysfunction; nonvalvular disease; normal vaginal delivery; no venereal disease; Newcastle virus disease; number of vessels diseased
N/V/D nausea, vomiting, diarrhea
NVE native valve endocarditis
NVG neovascular glaucoma; night vision goggles; nonventilated group
NVIm N-vinyl imidazole
NVL no visible lesion
NVM neovascular membrane; nonvolatile matter
NVP nevirapine; N-vinyl pyrrolidone
NVPO National Vaccine Program Office
NVS neurologic vital signs
NVSS normal variant short stature
NVTS normal volunteer telephone screening
NW naked weight; nasal wash
nW nanowatt
NWB nonweightbearing
NWCL New World cutaneous leishmaniasis
NWDA National Wholesale Druggists Association
NWM nucleotide weight matrix
NWR normotensive Wistar rat
NWTS National Wilms' Tumor Study
NX naloxone; no evidence of lymph node metastases [TNM (tumor-node-metastasis) classification]; no evidence of breast tumor lymph node metastases [TNM (tumor-node-metastasis) classification]
Nx no evidence of lymph node metastases [TNM (tumor-node-metastasis) classification]; no evidence of breast tumor lymph node metastases [TNM (tumor-node-metastasis) classification]
NXG necrobiotic xanthogranuloma
ny, nyst nystagmus
NYAV Nyabira virus
NYC New York City [medium]
NYD not yet diagnosed; not yet discovered
NYHA New York Heart Association
NYHAFC New York Heart Association Functional Class
NYMV Nyamanini virus
NYQAS New York Quality Assurance System
NYV New York virus
NZ neutral zone; normal zone
NZB New Zealand black [mouse]
NZC New Zealand chocolate [mouse]
NZO New Zealand obese [mouse]
NZR New Zealand red [rabbit]
NZV New Zealand virus
NZW New Zealand white [mouse]