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.
Cross-Reactive Binding Antidrug Antibody IgG/IgM Measurement
The determination of the cross-reactive antidrug binding IgG and/or IgM antibody in a biospecimen.
Helper 1 T-Lymphocyte Subpopulation Count
The determination of the number of a subpopulation of helper 1 T-lymphocytes in a sample.
Growth Differentiation Factor 2 Measurement
The determination of the amount of growth differentiation factor 2 in a sample.
Effector Memory T-Lymphocyte Subpopulation Count
The determination of the number of a subpopulation of effector memory T-lymphocytes in a sample.
Dietary Lutein and Zeaxanthin Measurement
A determination of the lutein and zeaxanthin in a nutritional product or meal, or a portion thereof.
Molluscum contagiosum Virus DNA Measurement
The determination of the molluscum contagiosum virus DNA in a sample.
Microbial Sensitivity Test
A laboratory procedure in which the efficacy of a range of antimicrobial agents is tested against bacteria, fungi, or viruses.
Cytokine Measurement
The determination of type and amount of cytokines in a sample.
Lymphoblast to Leukocyte Ratio Measurement
The determination of the ratio of lymphoblasts compared to total leukocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Chitotriosidase-1 Measurement
The determination of the chitotriosidase-1 in a sample.
Plasmablast Subpopulation to Total Plasmablast Ratio Measurement
The determination of the ratio of a sub-population of plasmablasts to total plasmablasts present in a sample. The measurement may be expressed as a ratio or percentage.
Vascular Endothelial Growth Factor Receptor 2 Measurement
The determination of the amount of vascular endothelial growth factor receptor 2 present in a sample.
Skin-Homing Cytotoxic Terminal Memory T-Lymphocyte Count
The determination of the skin-homing cytotoxic terminal memory T-lymphocytes present in a sample.
Cytotoxic T-Lymphocyte Subpopulation to T-Lymphocyte Ratio Measurement
The determination of the ratio of T-lymphocytes cytotoxic sub-population to T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Immature Cell to Total Cell Ratio Measurement
The determination of the ratio of the immature hematopoietic cells compared to total cells present in a sample. The measurement may be expressed as a ratio or percentage.
Antigenic Skin Flare Longest Diameter Measurement
The determination of the longest diameter for the area of redness that forms around the site of an antigenic challenge to the skin.
Complement C3a DesArg Measurement
The determination of the amount of complement C3a DesArg present in a sample.
Burkholderia anthina Measurement
The determination of the amount of Burkholderia anthina in a sample.
Heinz-Ehrlich Body Measurement
The determination of the amount of Heinz bodies (denatured hemoglobin) present in a sample.
Nandrolone Measurement
The determination of the amount of nandrolone present in a sample.
Tetraspanin-29 Measurement
The determination of the tetraspanin-29 present in a sample.
MAB-CHMINACA Measurement
The determination of the amount of the MAB-CHMINACA in a sample.
Gut-Homing Helper Central Memory T-Lymphocyte Subpopulation to Helper Central Memory T-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of gut-homing helper central memory T-lymphocytes to total helper central memory T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Enteropathogenic Escherichia coli eae DNA Measurement
The determination of the amount of enteropathogenic Escherichia coli eae DNA present in a sample.