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.
Human Herpesvirus 8 Measurement
The determination of the amount of human herpesvirus 8 in a sample.
S-Benzyl Mercapturic Acid Measurement
The determination of the S-benzyl mercapturic acid present in a sample.
Dietary Folate Equivalents Measurement
The sum of food folate and normalized folic acid (as food folate equivalents) in a nutritional product or meal, or a portion thereof.
Macrophage Migration Inhibitory Factor Measurement
The determination of the amount of macrophage migration inhibitory factor present in a sample.
Oxygen Capacity Measurement
The determination of the maximum amount of oxygen that can be combined chemically with hemoglobin in a volume of blood.
Strongyloides IgG Antibody Measurement
The determination of the amount of strongyloides IgG antibody present in a sample.
Conventional Stem Cell Memory T-Lymphocyte to T-Lymphocyte Ratio Measurement
The determination of the ratio of conventional stem cell memory T-lymphocytes to T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Cotinine Measurement
The determination of the amount of cotinine present in a sample.
Apolipoprotein AII Measurement
The determination of the amount of apolipoprotein AII present in a sample.
Aggrecan Chondroitin Sulfate Epitope 846 Measurement
The determination of the amount of aggrecan chondroitin sulfate epitope 846 present in a sample.
Activated CD4 Expressing T Lymphocyte to Total T Lymphocyte Percent Measurement
The measurement of the ratio of activated T-lymphocytes expressing CD4 to the total number of T-lymphocytes in a sample expressed as a percent value.
Natural Killer Cell Count
The determination of the amount of natural killer cells present in a sample.
Mitochondrial M2 Antibody Measurement
The determination of the amount of mitochondrial M2 antibody present in a sample.
Terminal Memory Cytotoxic T-Lymphocyte Subpopulation Count
The determination of the number of a subpopulation of cytotoxic terminal memory T-lymphocytes in a sample.
Eotaxin-1 Measurement
The determination of the amount of eotaxin-1 present in a sample.
Conventional Effector Memory T-Lymphocyte to Helper T-Lymphocyte Ratio Measurement
The determination of the ratio of the conventional effector memory T-lymphocytes to helper T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Cytotoxic T Lymphocyte to Total Blood Cell Percent Measurement
The measurement of the ratio of cytotoxic T lymphocytes, which are T lymphocytes that express CD8, to the total number of blood cells in a sample expressed as a percent value.
White Elm Pollen IgE Antibody Measurement
The determination of the amount of Ulmus americana pollen antigen IgE antibody present in a sample.
Complement C3c Measurement
The determination of the amount of the complement C3c in a sample.
SH2 Domain Containing 1A Protein Measurement
The determination of the amount of SH2 domain containing 1A protein present in a sample.
Influenza A H1 Nucleic Acid Measurement
The determination of the Influenza A virus subtype hemagglutinin (HA) 1 nucleic acid in an biological specimen.
Type II Secretory Phospholipase A2 Measurement
The determination of the type II secretory phospholipase A2 present in a sample.
Pneumocystis jiroveci Antigen Measurement
The determination of the amount of Pneumocystis jiroveci antigen in a biological sample.
Anti-Saccharomyces cerevisiae Antibody Measurement
The determination of the amount of anti-Saccharomyces cerevisiae antibody present in a sample.