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.
Transitional 1 B-Lymphocyte Count
The determination of the number of the transitional 1 B-lymphocytes in a sample.
Interleukin-4 Receptor Subunit Alpha Measurement
The determination of the amount of interleukin-4 receptor subunit alpha in a sample.
MutS Homolog 3 Measurement
The determination of the amount of MSH3 mismatch repair protein in a biological sample.
Skin-Homing Cytotoxic Effector Memory T-Lymphocyte to Cytotoxic T-Lymphocyte Ratio Measurement
The determination of the ratio of the skin-homing cytotoxic effector memory T-lymphocytes to total cytotoxic T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Effector Helper T-Lymphocyte Subpopulation Count
The determination of the number of a subpopulation of helper effector T-lymphocytes in a sample.
Normochromatic Erythrocytes Scored Count
The determination of the total number of normochromatic erythrocytes that are scored as part of a protocol-defined assay.
HLA DP Alpha1 Histocompatibility Antigen Measurement
The determination of the amount of HLA DP Alpha 1 antigen present in a sample.
High Density Lipoprotein Cholesterol Measurement
The determination of the amount of high-density lipoprotein cholesterol present in a sample.
Legionella pneumophila IgG IgM Antibody Measurement
The determination of the amount of Legionella pneumophila IgG and IgM antibody present in a sample.
Transitional 2 B-Lymphocyte Subpopulation to Transitional 2 B-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of transitional 2 B-lymphocytes to total transitional 2 B-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Effector Memory Cytotoxic T-Lymphocyte Subpopulation Count
The determination of the number of a subpopulation of cytotoxic effector memory T-lymphocytes in a sample.
Nitrate Measurement
The determination of the amount of nitrate present in a sample.
HLA DQ2 Antigen Measurement
The determination of the amount of HLA DQ2 antigen present in a sample.
Double-Negative B-Lymphocyte to B-Lymphocyte Ratio Measurement
The determination of the ratio of double negative B-lymphocytes to B-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Cystatin B Measurement
The determination of the amount of cystatin B in a sample.
Western Ragweed Pollen IgA Measurement
A measurement of the western ragweed (Ambrosia psilostachya) pollen IgA in a biological specimen.
Neo-Epitope Measurement
The determination of the amount of a neo-epitope, which usually is a protein sequence that is exposed after proteolytic cleavage, in a sample.
Enterococcus Measurement
The determination of the amount of Enterococcus genus level organisms in a sample.
Naive B-Lymphocytes to Total B-Lymphocytes Ratio Measurement
The determination of the ratio of naive B-lymphocytes to B-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Phospholipase A2 Measurement
The determination of the amount of phospholipase A2 present in a sample.
Thyroglobulin Measurement
The determination of the amount of the thyroglobulin in a sample.
2-Cyanoethyl Mercapturic Acid Measurement
The determination of the 2-cyanoethyl mercapturic acid present in a sample.
Mucor racemosus IgE Measurement
A measurement of the Mucor racemosus IgE in a biological specimen.
Carcinoembryonic Antigen Measurement
The determination of the amount of carcinoembryonic antigen present in a sample.