Testing Knowledge
Test Directory
Source-backed test guides: what each test is for, how it is performed, its limitations, and which reviewed products serve it. Personal health questions are answered with knowledge and preparation guidance — not supplier sales.
Insulin Antibody Measurement
The determination of the amount of insulin antibody in a biological specimen.
Free Normetanephrine Measurement
The determination of the amount of free normetanephrine present in a sample.
N-Demethylase Measurement
The determination of the amount of N-demethylase present in a sample.
Alpha Tocopherol to Vitamin E Ratio Measurement
The determination of the ratio of alpha-tocopherol compared with the total vitamin E in a sample. The measurement may be expressed as a ratio or percentage.
Proprotein Convertase Subtilisin/Kexin Type 9 Measurement
The determination of the proprotein convertase subtilisin/kexin type 9 present in a sample.
Myeloid-Derived Suppressor Cell to Lymphocyte and Monocyte Ratio Measurement
The determination of the ratio of myeloid-derived suppressor cells compared to lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Antibody-secreting B-Lymphocyte Subpopulation to Antibody-secreting B-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of antibody-secreting B-lymphocytes to antibody-secreting B-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Immunohematology Test
Clinical laboratory tests that examine antigen-antibody reactions in whole blood or its cellular and/or fluid components that may impact natural processes, such as fertility, and clinical procedures affected by tissue and blood compatibility, such as transplants and transfusions.
P50 Oxygen Measurement
The determination of the amount of partial pressure of oxygen when hemoglobin is half saturated that is present in a sample.
11-Ketotestosterone Measurement
The determination of the 11-ketotestosterone present in a sample.
Norclostebol Measurement
The determination of the amount of the norclostebol in a sample.
Cardiolipin IgA Antibody Measurement
The determination of the amount of cardiolipin IgA antibody in a biological specimen.
4-Aminobiphenyl Measurement
The determination of the amount of 4-aminobiphenyl in a sample.
Ethylene Glycol Measurement
The determination of the amount of ethylene glycol in a sample.
Free Hemoglobin Measurement
The determination of the amount of free hemoglobin present in a sample.
Glucose Clearance Measurement
A measurement of the glucose clearance in a sample.
Corynebacterium striatum Measurement
A measurement of Corynebacterium striatum in a sample.
Neutralizing Binding Antidrug IgE Antibody Measurement
The determination of the neutralizing antidrug binding IgE antibody in a biospecimen.
Human Albumin Antibody Measurement
The determination of the amount of the human albumin antibody in a sample.
Nontuberculous Mycobacteria Measurement
The determination of the amount of organisms that are assigned to the Mycobacterium genus but are not tuberculosis or leprosy-causing in a biological sample.
Monocytic Myeloid-Derived Suppressor Cell Subpopulation to Myeloid-Derived Suppressor Cell Ratio Measurement
The determination of the ratio of a sub-population of monocytic myeloid-derived suppressor cells to all myeloid-derived suppressor cells present in a sample. The measurement may be expressed as a ratio or percentage.
Lead Measurement
The determination of the amount of lead present in a sample.
Guanine Deaminase Measurement
The determination of the amount of guanine deaminase present in a sample.
Helper T Lymphocyte to Total Blood Cell Percent Measurement
The measurement of the ratio of helper T lymphocytes, which are T lymphocytes that express CD4, to the total number of blood cells in a sample expressed as a percent value.