Lab report names starting with I

Abbreviations

• I BILBilirubin, IndirectThe part of bilirubin that has not yet been processed by the liver. It is worked out by subtracting direct bilirubin from total bilirubin.
• I BILIBilirubin, IndirectThe part of bilirubin that has not yet been processed by the liver. It is worked out by subtracting direct bilirubin from total bilirubin.
• i001Honey Bee Venom IgEMeasures IgE antibodies to honey bee venom, which helps clinicians work out whether a sting reaction may be linked to bee venom.
• i003Yellow Jacket Venom (Vespula) IgEMeasures IgE antibodies to yellow jacket (Vespula) venom, which helps clinicians work out whether a sting reaction may be linked to yellow jackets.
• i004Paper Wasp Venom (Polistes) IgEMeasures IgE antibodies to paper wasp venom in your blood. A detectable result means you are sensitized, which is not the same as a sting allergy.
• i006German Cockroach IgEMeasures IgE antibodies to German cockroach, an indoor allergen linked to year-round nose and eye symptoms and to asthma.
• i1Honey Bee Venom IgEMeasures IgE antibodies to honey bee venom, which helps clinicians work out whether a sting reaction may be linked to bee venom.
• i3Yellow Jacket Venom (Vespula) IgEMeasures IgE antibodies to yellow jacket (Vespula) venom, which helps clinicians work out whether a sting reaction may be linked to yellow jackets.
• i4Paper Wasp Venom (Polistes) IgEMeasures IgE antibodies to paper wasp venom in your blood. A detectable result means you are sensitized, which is not the same as a sting allergy.
• i6German Cockroach IgEMeasures IgE antibodies to German cockroach, an indoor allergen linked to year-round nose and eye symptoms and to asthma.
• IA-2IA-2 Antibody (Islet Antigen-2)Measures antibodies to IA-2, a protein in insulin-making cells, which is one of the islet antibodies used to look for autoimmune (type 1) diabetes.
• IA-2AIA-2 Antibody (Islet Antigen-2)Measures antibodies to IA-2, a protein in insulin-making cells, which is one of the islet antibodies used to look for autoimmune (type 1) diabetes.
• IAAInsulin Autoantibodies (IAA)Measures antibodies to insulin, used to look for autoimmune (type 1) diabetes before insulin treatment or to find antibodies to injected insulin.
• IATRed Cell Antibody Screen (Indirect Coombs)A blood-bank test that checks whether your plasma has antibodies to red blood cell types you don't have. It is routine in pregnancy and before transfusions.
• iCaCalcium, IonizedIonized calcium is the free, active part of the calcium in your blood. It is checked when total calcium or protein levels make the usual test hard to read.
• ICA512IA-2 Antibody (Islet Antigen-2)Measures antibodies to IA-2, a protein in insulin-making cells, which is one of the islet antibodies used to look for autoimmune (type 1) diabetes.
• ICAP patternANA Pattern (ICAP)Describes how the antibodies in a positive ANA test look under a microscope, such as smooth, speckled or dotted. The pattern helps guide which tests come next.
• ICSHLuteinizing Hormone (LH)A pituitary hormone that triggers ovulation in women and tells the testes to make testosterone in men. It surges mid-cycle.
• IFABIntrinsic Factor Blocking AntibodyLooks for antibodies that block intrinsic factor, a stomach protein needed to absorb vitamin B12; a positive result supports pernicious anemia.
• IFBAIntrinsic Factor Blocking AntibodyLooks for antibodies that block intrinsic factor, a stomach protein needed to absorb vitamin B12; a positive result supports pernicious anemia.
• IFEImmunofixation (IFE), SerumChecks whether a protein made by one clone of plasma cells is in your blood. If so, it names the type, such as IgG kappa.
• iFOBTFecal Immunochemical Test (FIT)A stool test that looks for tiny amounts of blood you cannot see. It is used in routine bowel cancer checks and when bleeding in the gut is suspected.
• IG AbsImmature Granulocytes (Absolute)The number of young white blood cells (immature granulocytes) in a microliter of blood. Most healthy adults have very few.
• IG#Immature Granulocytes (Absolute)The number of young white blood cells (immature granulocytes) in a microliter of blood. Most healthy adults have very few.
• IG%Immature Granulocytes (Percent)The share of your white blood cells that are young, not-yet-mature granulocytes. Clinicians read it with the rest of your CBC.
• IgAImmunoglobulin A (IgA)An antibody that guards the linings of your gut, airways and mouth. It is also the control for celiac blood tests.
• IgEImmunoglobulin E (IgE), TotalTotal IgE is the overall amount of this allergy-related antibody in your blood. High levels are common with allergies, but the test can't show what you react to.
• IGF-1IGF-1 (Insulin-like Growth Factor 1)A protein your liver makes in response to growth hormone. It's a steady signal of growth hormone activity, and usual levels vary a lot with age and sex.
• IGF-1 SDSIGF-1 Z-Score (SDS)A score that shows how far your IGF-1 result is from the average for people of your age and sex, in standard deviations. Labs usually print it next to IGF-1.
• IGF-IIGF-1 (Insulin-like Growth Factor 1)A protein your liver makes in response to growth hormone. It's a steady signal of growth hormone activity, and usual levels vary a lot with age and sex.
• IGF-I SDSIGF-1 Z-Score (SDS)A score that shows how far your IGF-1 result is from the average for people of your age and sex, in standard deviations. Labs usually print it next to IGF-1.
• IGFBP-3IGFBP-3 (IGF Binding Protein 3)A protein made mostly in the liver that carries IGF-1 in the blood. It rises and falls with growth hormone and with nutrition, and usual levels change a lot with age.
• IgGImmunoglobulin G (IgG)The most common antibody in your blood. It shows how much of this main infection-fighting protein your body makes.
• IgG aCLAnticardiolipin Antibody IgGMeasures IgG antibodies to cardiolipin, a fat in cell membranes. Levels above your lab's cutoff are one piece of testing for antiphospholipid antibodies.
• IgMImmunoglobulin M (IgM)The first antibody your body makes against a new germ. Reported in mg/dL in the US and in g/L in many other countries.
• IgM aCLAnticardiolipin Antibody IgMMeasures IgM antibodies to cardiolipin, a fat in cell membranes. Levels above your lab's cutoff are one piece of testing for antiphospholipid antibodies.
• IgM anti-HAVHepatitis A antibody, IgMAn early antibody to the hepatitis A virus. A positive result can mean a current or recent hepatitis A infection.
• IgM anti-HBcHepatitis B Core Antibody, IgMA short-lived antibody that appears early in a new hepatitis B infection. A positive result is linked to infection within roughly the past six months.
• IGRAQuantiFERON-TB Gold PlusLab panelInterferon-gamma release assay result with antigen and mitogen tube values.
• IL-6Interleukin-6 (IL-6)A signaling protein your immune system releases early in infection and inflammation. It is ordered in specific situations, not at routine check-ups.
• IM screenMononucleosis Screen (Heterophile Antibody)A quick blood test for heterophile antibodies, which most often appear during infectious mononucleosis (mono), usually caused by the Epstein-Barr virus.
• INRINR (International Normalized Ratio)A standard way to report how long your blood takes to clot, used mainly to monitor warfarin and to check clotting and liver function.
• INSInsulinInsulin is the hormone that moves sugar from your blood into your cells. This test shows how much is in your blood, usually after fasting.
• iP1NPP1NP (Procollagen Type 1 N-Terminal Propeptide)A blood marker of how fast new bone is being built. It is mostly used to follow bone treatment, not to screen healthy people.
• iPTHParathyroid Hormone (PTH), IntactA hormone from four small glands in your neck that keeps your blood calcium steady. It is read together with calcium and vitamin D.
• IRIInsulinInsulin is the hormone that moves sugar from your blood into your cells. This test shows how much is in your blood, usually after fasting.