Lab report names starting with N

Abbreviations

• % NKCD16+/CD56+ NK Cells, percentThe share of your lymphocytes that are natural killer (NK) cells. NK cells are white blood cells that help the body handle viruses and damaged cells.
• N antibodySARS-CoV-2 nucleocapsid (N) antibodyChecks for antibodies to a protein inside the COVID-19 virus. A positive result can be a sign of a past infection.
• n-6/n-3Omega-6:Omega-3 RatioCompares the omega-6 fats in your blood with the omega-3 fats, but labs calculate it differently, so numbers from different labs cannot be compared.
• N/LNeutrophil-to-Lymphocyte Ratio (NLR)A ratio worked out from two white blood cell counts. A higher value is a general sign of stress or inflammation, not a diagnosis.
• NaSodiumSodium is the main salt in your blood. This test shows how well your body balances water and salt.
• Neut#Neutrophils (Absolute)The number of neutrophils in a microliter of blood. Neutrophils are your most common white blood cell and a first line of defense against germs.
• Neut%Neutrophils (Percent)The share of your white blood cells that are neutrophils. The absolute neutrophil count is usually the more useful number.
• NFENTUrine Fentanyl ScreenA urine screen for fentanyl, a very strong opioid, and norfentanyl, its main breakdown product. A positive result is presumptive until confirmed.
• NfLNeurofilament Light Chain (NfL)A protein released when nerve cells are injured. Levels rise with age, so labs use age-based ranges, and a high result does not point to one cause.
• NGNeisseria gonorrhoeae NAATA urine test that looks for the genetic material of the bacteria that cause gonorrhea, a common sexually transmitted infection.
• NG NAATNeisseria gonorrhoeae NAATA urine test that looks for the genetic material of the bacteria that cause gonorrhea, a common sexually transmitted infection.
• NH3AmmoniaA waste product made when the body breaks down protein, normally cleared by the liver. The test shows whether ammonia is building up in the blood.
• NHDL-CNon-HDL CholesterolAll the cholesterol in your blood except HDL. It is total cholesterol minus HDL, and it counts every particle that can build up in artery walls.
• NIPSNIPT Aneuploidy Screen (Cell-Free DNA)A prenatal blood test that estimates the chance that a baby has an extra copy of chromosome 21, 18 or 13. It is a screening test, not a diagnosis.
• NIPTNIPT Aneuploidy Screen (Cell-Free DNA)A prenatal blood test that estimates the chance that a baby has an extra copy of chromosome 21, 18 or 13. It is a screening test, not a diagnosis.
• NITUrine Nitrite (Dipstick)Checks for nitrite, a chemical some urinary bacteria make. A positive result can be an early clue to a urinary tract infection.
• NLRNeutrophil-to-Lymphocyte Ratio (NLR)A ratio worked out from two white blood cell counts. A higher value is a general sign of stress or inflammation, not a diagnosis.
• NMO-IgGAquaporin-4 (AQP4/NMO) IgGA blood test for an antibody to a water channel in the brain and spinal cord. It helps tell neuromyelitis optica spectrum disorder (NMOSD) from other nerve conditions.
• non-HDLNon-HDL CholesterolAll the cholesterol in your blood except HDL. It is total cholesterol minus HDL, and it counts every particle that can build up in artery walls.
• Non-HDL-CNon-HDL CholesterolAll the cholesterol in your blood except HDL. It is total cholesterol minus HDL, and it counts every particle that can build up in artery walls.
• NRBCNucleated Red Blood Cells (nRBC) (Percent)How many nucleated red blood cells are in the blood for every 100 white blood cells. Healthy people usually have none after the first weeks of life.
• NRBC AbsNucleated Red Blood Cells (nRBC) (Absolute)The number of nucleated red blood cells in each microliter of blood. Healthy people usually have none after the first weeks of life.
• NRBC#Nucleated Red Blood Cells (nRBC) (Absolute)The number of nucleated red blood cells in each microliter of blood. Healthy people usually have none after the first weeks of life.
• nRNPAnti-U1-RNP Antibody (RNP)Looks for antibodies to U1-RNP. They are most closely linked with mixed connective tissue disease and can also appear in lupus and related conditions.
• NT-BNPNT-proBNP (N-Terminal pro-B-Type Natriuretic Peptide)A protein fragment your heart releases when it is under strain. It helps clinicians judge whether symptoms like breathlessness could come from heart failure.
• NT-proBNPNT-proBNP (N-Terminal pro-B-Type Natriuretic Peptide)A protein fragment your heart releases when it is under strain. It helps clinicians judge whether symptoms like breathlessness could come from heart failure.