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.
Round Epithelial Cell Count
The determination of the number of round epithelial cells present in a urine sample.
Interferon Alpha Measurement
The determination of the amount of interferon alpha present in a sample.
Norovirus Genogroup II.4 IgG Antibody Measurement
A measurement of Norovirus genogroup II.4 IgG antibody present in a sample.
Angiopoietin 2 Measurement
The determination of the amount of angiopoietin 2 present in a sample.
Macrophage to Total Cell Ratio Measurement
The determination of the ratio of the macrophages compared to total cells present in a sample. The measurement may be expressed as a ratio or percentage.
SARS-CoV-2 Neutralizing Antibody Measurement
The determination of the amount of SARS-CoV-2 neutralizing antibody in a biological sample.
Terminal Memory Cytotoxic T-Lymphocyte Subpopulation to Terminal Memory Cytotoxic T-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of terminal memory cytotoxic T-lymphocytes to the total terminal memory cytotoxic T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Prothrombin Measurement
The determination of the amount of prothrombin present in a sample.
Gut-Homing Cytotoxic Terminal Memory T-Lymphocyte Count
The determination of the gut-homing cytotoxic terminal memory T-lymphocytes present in a sample.
Oxazepam Measurement
The determination of the amount of oxazepam present in a sample.
Innate Lymphoid Cell Subpopulation Count
A measurement of a sub-population of innate lymphoid cells present in a sample.
Lymphocyte Subpopulation to Lymphocyte Subpopulation Ratio Measurement
The determination of the ratio of a sub-population of lymphocytes to a sub-population of lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Gut-Homing Follicular Helper T-Lymphocyte Subpopulation to Gut-Homing Follicular Helper T-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of gut-homing helper follicular T-lymphocytes to total gut-homing helper follicular T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Proteus hauseri Measurement
A measurement of Proteus hauseri in a sample.
Carnitine Acetyl Transferase Measurement
The determination of the amount of carnitine Acetyl transferase present in a sample.
Cryptosporidium DNA Measurement
The determination of the amount of DNA from any member of the genus Cryptosporidium present in a sample.
Pancreatic Elastase Measurement
The determination of the amount of pancreatic elastase present in a sample.
Intermediate Natural Killer Cell to Lymphocyte Subpopulation Ratio Measurement
The determination of the intermediate natural killer cells to a sub-population of lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Lactulose Measurement
The determination of the amount of lactulose present in a sample.
Bethesda Assay
An assay designed to standardize measurement of serum inhibitors of blood clotting in a factor VIII neutralization assay.
Glomerular Filtration Rate from B-2 Microglobulin Adjusted for Actual BSA Measurement
A direct measurement of the glomerular filtration rate (GFR) based on the clearance of beta-2 microglobulin after adjusting it for the individual's actual body surface area value.
Mucosal-Associated Invariant T-Lymphocyte Count
The determination of the number of mucosal-associated invariant T-Lymphocyte in a sample.
Plasma Cell to Lymphocyte Ratio Measurement
The determination of the ratio of the total plasma cells to lymphocytes in a sample. The measurement may be expressed as a ratio or percentage.
Mucosal-Associated Invariant T-Lymphocyte Subpopulation Count
The determination of the amount of a sub-population of mucosal-associated invariant T-lymphocytes present in a sample.