Lab report names starting with M

Abbreviations

• M-proteinM-Protein (Monoclonal Spike), SerumThe size of a monoclonal protein (M-spike), a single antibody made by one group of plasma cells. Most people have none.
• M-spikeM-Protein (Monoclonal Spike), SerumThe size of a monoclonal protein (M-spike), a single antibody made by one group of plasma cells. Most people have none.
• m001Penicillium chrysogenum IgEMeasures IgE antibodies to Penicillium, a common mold, in your blood. A detectable result means you are sensitized, which is not the same as a mold allergy.
• M002Cladosporium herbarum IgEShows whether your immune system has made IgE antibodies to Cladosporium herbarum, a common indoor and outdoor mold.
• M003Aspergillus fumigatus IgEMeasures IgE antibodies to Aspergillus fumigatus, a common mold, to show whether your immune system has become sensitized to it.
• m006Alternaria alternata IgEMeasures IgE antibodies to Alternaria, a common outdoor mold, in your blood. A detectable result means you are sensitized, which can go with mold allergy or asthma.
• m1Penicillium chrysogenum IgEMeasures IgE antibodies to Penicillium, a common mold, in your blood. A detectable result means you are sensitized, which is not the same as a mold allergy.
• m2Cladosporium herbarum IgEShows whether your immune system has made IgE antibodies to Cladosporium herbarum, a common indoor and outdoor mold.
• m3Aspergillus fumigatus IgEMeasures IgE antibodies to Aspergillus fumigatus, a common mold, to show whether your immune system has become sensitized to it.
• m6Alternaria alternata IgEMeasures IgE antibodies to Alternaria, a common outdoor mold, in your blood. A detectable result means you are sensitized, which can go with mold allergy or asthma.
• Malaria RDTMalaria Antigen (Rapid Test)A quick finger-prick or blood-draw test that looks for proteins from malaria parasites. In the US, a positive or negative result is followed up with a blood smear.
• Malaria smearMalaria Parasite Smear (Thick/Thin Film)A microscope exam of a blood sample that shows whether malaria parasites are present, which species they are and how many red cells are infected.
• MCHMean Corpuscular Hemoglobin (MCH)How much hemoglobin, on average, each of your red blood cells carries.
• MCHCMean Corpuscular Hemoglobin Concentration (MCHC)How concentrated the hemoglobin is inside your red blood cells, which shows how pale or dense they are.
• MCTTryptaseMeasures tryptase, a protein mast cells release in allergic reactions. It is checked after a possible severe reaction and to find your usual baseline level.
• MCVMean Corpuscular Volume (MCV)The average size of your red blood cells. It helps show whether they run smaller or larger than usual.
• MDMAUrine MDMA (Ecstasy) ScreenA urine screen for MDMA (ecstasy or molly) and closely related drugs. A positive result is presumptive until a second test confirms it.
• METAVIRFibroSure Fibrosis Stage (METAVIR F0-F4)The liver scarring stage, from F0 (none) to F4 (cirrhosis), estimated from the FibroSure blood score. It is not a biopsy result.
• METHUrine Methamphetamine ScreenA yes-or-no urine test for methamphetamine. A positive is a first-step result that can have other causes, such as medicines, and is usually confirmed with a second test.
• MetHbMethemoglobin (MetHb)The share of your hemoglobin in a form that can't carry oxygen well. Labs usually report up to about 1.5%, and higher levels can cause blue-gray skin.
• MetHgbMethemoglobin (MetHb)The share of your hemoglobin in a form that can't carry oxygen well. Labs usually report up to about 1.5%, and higher levels can cause blue-gray skin.
• MeV IgGMeasles (Rubeola) IgGChecks for antibodies that show your body has met the measles virus, through vaccination or past infection. It is often used to check immunity.
• MgMagnesiumMagnesium is a mineral your muscles, nerves and heart need. A blood test shows only a small part of your body's total supply.
• Mg RBCMagnesium, RBCMagnesium measured inside your red blood cells. Some clinicians use it to look at magnesium stores, but how well it reflects your whole-body magnesium is debated.
• MISAnti-Mullerian Hormone (AMH)A hormone made by small growing follicles in the ovaries. It reflects how many are growing and is used as a clue to ovarian reserve.
• MMFMycophenolic Acid (MPA)Measures the active form of mycophenolate (CellCept, Myfortic) in your blood. Transplant and autoimmune teams use it to see how much drug your body is getting.
• MOGMOG-IgG (Myelin Oligodendrocyte Glycoprotein Antibody)Looks for antibodies to MOG, a protein on the coating of nerve fibers; a clear positive can support a MOGAD diagnosis when symptoms fit.
• MOG-AbMOG-IgG (Myelin Oligodendrocyte Glycoprotein Antibody)Looks for antibodies to MOG, a protein on the coating of nerve fibers; a clear positive can support a MOGAD diagnosis when symptoms fit.
• MOG-IgGMOG-IgG (Myelin Oligodendrocyte Glycoprotein Antibody)Looks for antibodies to MOG, a protein on the coating of nerve fibers; a clear positive can support a MOGAD diagnosis when symptoms fit.
• Mono#Monocytes (Absolute)The number of monocytes in a microliter of blood. Monocytes are white blood cells that clear debris and help fight infection.
• Mono%Monocytes (Percent)The share of your white blood cells that are monocytes. The absolute monocyte count is usually the more useful number.
• MonospotMononucleosis 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.
• MPAMycophenolic Acid (MPA)Measures the active form of mycophenolate (CellCept, Myfortic) in your blood. Transplant and autoimmune teams use it to see how much drug your body is getting.
• MPO AbMPO-ANCA (Anti-Myeloperoxidase Antibody)A blood test for antibodies against myeloperoxidase, a protein in white blood cells. A positive result is linked to some types of blood vessel inflammation (vasculitis).
• MPO-ANCAMPO-ANCA (Anti-Myeloperoxidase Antibody)A blood test for antibodies against myeloperoxidase, a protein in white blood cells. A positive result is linked to some types of blood vessel inflammation (vasculitis).
• MPVMean Platelet Volume (MPV)The average size of your platelets, the small blood cells that help your blood clot.
• mt-sDNACologuard (Multitarget Stool DNA Test)A home stool test that looks for altered DNA and hidden blood linked to colon cancer and advanced polyps. It is a screening test, not a diagnosis.
• MTDUrine Methadone ScreenA urine screen for methadone, an opioid medicine used for pain and opioid use disorder, or for EDDP, its main breakdown product.
• MTXMethotrexateMeasures how much methotrexate is in your blood at a set time after a dose. It is mostly used to guide care after high-dose treatment.
• Mumps Ab IgGMumps IgGAntibodies that show your immune system has met the mumps virus, from the MMR vaccine or a past infection. Results are usually printed as negative, equivocal or positive.