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.
Nucleated Cell Count
The determination of the amount of nucleated cells present in a sample.
Clot Detection
Any of several methods used to detect the presence of or quantify the formation of a thrombus in a specimen.
Tumor Necrosis Factor Receptor 1 Measurement
The determination of the tumor necrosis factor receptor 1 present in a sample.
Allergen-induced IgE Antibody Measurement
The determination of the allergen-induced, binding IgE antibody in a biospecimen.
Thyrotropin Releasing Hormone Measurement
The determination of the amount of thyrotropin releasing hormone present in a sample.
Calcium Carbonate Crystal Measurement
The determination of the amount of calcium carbonate crystals present in a sample.
Skin-Homing Cytotoxic Memory T-Lymphocyte Subpopulation to Skin-Homing Cytotoxic Memory T-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of skin-homing cytotoxic memory T-lymphocytes to total skin-homing cytotoxic memory T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Factor IX Measurement
The determination of the amount of factor IX present in a sample.
MHC Class I Chain Related Protein A Measurement
The determination of the amount of MHC class I chain related protein A in a sample.
Vascular Endothelial Growth Factor Receptor Measurement
The determination of the amount of vascular endothelial growth factor receptor present in a sample.
Large Platelet Count
The determination of the number of large platelets present in a sample.
Myeloid Cell Count
The determination of the number of the myeloid cells in a sample.
Skin-Homing Helper Terminal Memory T-Lymphocyte Subpopulation to Skin-Homing Helper Terminal Memory T-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of skin-homing helper terminal memory T-lymphocytes to total skin-homing helper terminal memory T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Interleukin 1 Receptor Antagonist Measurement
The determination of the amount of interleukin 1 receptor antagonist present in a sample.
Cell Count
A procedure to determine the number of cells in a sample.
Glutathione-S-Transferase to Creatinine Ratio Measurement
The determination of the ratio of glutathione-s-transferase compared to creatinine present in a sample. The measurement may be expressed as a ratio or percentage.
Dengue Virus 2 RNA Measurement
The determination of the amount of dengue virus 2 RNA present in a sample.
Kappa Positive Plasma Cell to Lambda Positive Plasma Cell Ratio Measurement
The determination of the ratio of kappa positive plasma cells to lambda positive plasma cells present in a sample. The measurement may be expressed as a ratio or percentage.
Rickettsia DNA Measurement
The determination of the amount of DNA from any member of the genus Rickettsia in a sample.
Campylobacter Measurement
The determination of the amount of organisms that are not assigned to the species level but are assigned to the Campylobacter genus level in a sample.
Immature Intermediate Natural Killer Cell to Natural Killer Cell Ratio Measurement
The determination of the ratio of immature intermediate natural killer cells to natural killer cells present in a sample. The measurement may be expressed as a ratio or percentage.
Basophilic Metamyelocyte Count
The determination of the amount of basophilic metamyelocytes present in a sample.
Zolpidem Measurement
The determination of the amount of the zolpidem in a sample.
Lymphoma Cell to Total Cell Ratio Measurement
The determination of the ratio of lymphoma cells to total cells present in a sample. The measurement may be expressed as a ratio or percentage.