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.
Carbohydrate-Deficient Transferrin Measurement
The determination of the amount of transferrin with a reduced number of carbohydrate moieties present in a biological sample.
Sulfated DHEA Measurement
The determination of the amount of sulfated dehydroepiandrosterone (DHEA) present in a sample.
Natural Killer Cell to Total Blood Cell Percent Measurement
The measurement of the ratio of natural killer cells, which are leukocytes that express CD16 and CD56, to the total number of blood cells in a sample expressed as a percent value.
Complement C1q Measurement
The determination of the amount of complement C1q present in a sample.
Mixed Lymphocyte Reaction Test
An assay that measures the proliferative response of lymphocytes from one individual when they are exposed to inactivated lymphocytes from another individual. The reaction can be performed on lymphocytes from the same individual (auto-MLR), from different individuals of the same species (allo-MLR), or individuals from different species (xeno-MLR). It is used to evaluate the potential for graft-versus-host or host-versus-graft reactions during transplantation procedures involving mismatched tissue types or individuals.
Interleukin 12 Beta Measurement
The determination of the amount of interleukin 12 beta present in a sample.
Respiratory Syncytial Virus Type A RNA Measurement
The determination of the respiratory syncytial virus type A RNA in a sample.
Methyltransferase Measurement
The determination of the total methyltransferase in a sample.
Thrombospondin 1 Measurement
The determination of the amount of thrombospondin 1 present in a sample.
Norovirus Genogroup I and/or II RNA Measurement
A measurement of Norovirus genogroup I and/or II RNA present in a sample.
Naive Helper Regulatory T-Lymphocyte Subpopulation to Helper Regulatory T-Lymphocyte Ratio Measurement
The determination of the ratio of T-lymphocytes helper regulatory naive sub-population to T-lymphocytes helper regulatory present in a sample. The measurement may be expressed as a ratio or percentage.
Classical Monocyte to Non-TBNK Leukocyte Ratio Measurement
The determination of the ratio of the classical monocytes to all leukocytes that are not T-cells, B-cells, or natural killer cells, present in a sample. The measurement may be expressed as a ratio or percentage.
Meconium Measurement
The determination of the amount of meconium present in a sample.
Serum Soluble Interleukin-2 Receptor Subunit Alpha Measurement
An immunoassay that is used to determine the amount of soluble interleukin-2 receptor subunit alpha in a patient serum sample. High levels of the soluble form of the receptor can be indicative of hematological malignancies and other neoplastic disorders.
Human Papillomavirus Type 45 Measurement
The determination of the amount of Human papillomavirus type 45 in a sample.
Dietary Linolenic Acid Measurement
A determination of the total 18:3 linolenic acid in a nutritional product or meal, or a portion thereof.
Chlamydia Trachomatis RNA Measurement
The determination of the amount of Chlamydia trachomatis RNA in a biological sample.
Proteus DNA Measurement
The determination of the amount of Proteus DNA in a biological sample.
Vascular Endothelial Growth Factor Measurement
The determination of the amount of vascular epithelial growth factor present in a sample.
Type 1 Collagen X-link N-Telopeptides to Creatinine Ratio Measurement
The determination of the ratio of the type 1 collagen X-link N-telopeptides compared to creatinine present in a sample. The measurement may be expressed as a ratio or percentage.
Classical Monocyte Subpopulation Count
A measurement of a sub-population of classical monocytes present in a sample.
Free Proprotein Convertase Subtilisin/Kexin Type 9 Measurement
The determination of the amount of free proprotein convertase subtilisin/kexin type 9 present in a sample.
Stanazolol Measurement
The determination of the amount of stanazolol present in a sample.
Clostridium tetani IgG Antibody Measurement
The determination of the amount of the Clostridium tetani IgG antibody in a sample.