+ Sortable table Abbreviation Meaning Nφ Neutrophil Na sodium (from Latin natrium) NA negative appendectomy NAAT Nucleic Acid Amplification Test NABS normoactive bowel sounds NAC n-acetyl cysteineNaClsodium chloride (saline) NAD no abnormality detected no apparent distress no appreciable disease (and many variations of the above) NAD+ nicotinamide adenine dinucleotide NAFLD Non-alcoholic fatty liver disease NAI non-accidental injury (child abuse) NAS no added salt NASH Non-alcoholic steatohepatitis NB newborn (infant) note well (please pay attention) (from Latin nota bene) NBN newborn nursery NBIA neurodegeneration with brain iron accumulation NBT nitroblue tetrazolium NBTE nonbacterial thrombotic endocarditis NC nerve action potential nasal cannula NCAT Normocephalic, atraumatic; also written NC/AT NCC noncompaction cardiomyopathy NCCN National Comprehensive Cancer Network NCEP National Cholesterol Education Program NCS nerve conduction study NCT nerve conduction test, aka nerve conduction study NCV nerve conduction velocity (see nerve conduction study) ND (examination) not done NDD neurodevelopmental disorder NDI nephrogenic diabetes insipidus NDSC National Decision Support Company NE norepinephrine Ne neutrophil granulocytes NEAD Non-epileptic attack disorder NEAP Net Endogenous Acid Production NEC not elsewhere classified necrotizing enterocolitis NED No evidence of disease Neg negative Neo neoplasm NES not elsewhere specified NFR not for resuscitation NG nasogastric NGT NG tube nasogastric tube NGTD negative to date / no growth to date NGU nongonococcal urethritis NH nursing home NHL non-Hodgkin lymphoma NHW non-healing wound NICMPNICM non-ischemic cardiomyopathy NICU neonatal intensive care unit NIDDM non-insulin-dependent diabetes mellitus NIF Negative inspiratory force NIH National Institutes of Health NIPPV Nasal intermittent positive pressure ventilation NK NK cells natural killer cells NKA no known allergies NKDA no known drug allergies NL normal NLP no light perception (highest degree of blindness) NM nuclear medicine NMR nuclear magnetic resonance NNH number needed to harm NNT number needed to treat NO nitric oxide No. number NOF neck of femur fracture (refers to hip fracture) NOMI nonocclusive mesenteric ischemia Non rep. do not repeat NOS nitric oxide synthase; not otherwise specified NPA nasal pharyngeal aspirate NPH normal pressure hydrocephalus Npl neoplasm NP Nurse Practitioner NPC nasopharyngeal carcinoma NPDR Non-proliferative diabetic retinopathy NPO nil per os (nothing by mouth) NPPV noninvasive positive pressure ventilation NPT neuropsychiatric testing NPTAC no previous tracing available for comparison NPV negative predictive value NRB non-rebreather mask NRBC nucleated red blood cells NREM non–rapid eye movementNRTnicotine replacement therapy n.s. not significant NS normal saline NSA no significant abnormality NSAID nonsteroidal antiinflammatory drug NSBB Non-selective beta blocker NSCC Non-squamous-cell carcinoma NSCLC non–small cell lung carcinoma NSD normal spontaneous delivery (see childbirth) NSE neurospecific enolase NSIP Non-specific interstitial pneumonia NSR normal sinus rhythm NST non-stress test (see cardiotocograph) NSTEMI non-ST-elevation myocardial infarction NSU nonspecific urethritis NSVD normal spontaneous vaginal delivery NT not tested nontender nuchal translucency NTBS needs to be seen NTD neural tube defect NTG nitroglycerin n/t numbness and tingling NTP Nortriptyline NTS nucleus tractus solitarii, or Solitary nucleus NTT nasotracheal tube (see intubation) NTX N-telopeptidenuin each nostril N&V n/v nausea and vomiting NVD normal vaginal delivery (see childbirth); nausea, vomiting, and diarrhea NVDC nausea, vomiting, diarrhea, and constipation NVI Neurovascularly Intact, Neurovascular Injury, Neurovascular Impairment NVID Neurovascularly intact distally NWB Non-weight-bearing NYD Not yet diagnosed NYHA New York Heart Association

References