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.
Synthetic Cannabinoid Measurement
The determination of the amount of synthetic cannabinoids present in a biological sample.
Cadherin 6 Measurement
The determination of the amount of cadherin 6 in a sample.
Dietary Vegetables, Red and Orange Measurement
A determination of the total red and orange vegetables in a nutritional product or meal, or a portion thereof.
Type 2 Myeloid Dendritic Cell Subpopulation to Type 2 Myeloid Dendritic Cell Ratio Measurement
The determination of the ratio of a sub-population of the type 2 myeloid dendritic cells to total type 2 myeloid dendritic cells present in a sample. The measurement may be expressed as a ratio or percentage.
Citalopram Measurement
The determination of the amount of citalopram present in a sample.
Atrial Natriuretic Peptide Measurement
The determination of the amount of atrial-natriuretic peptide present in a sample.
Partial Pressure Arterial Oxygen to Fraction Inspired Oxygen Ratio Measurement
The determination of the ratio of the pressure of oxygen dissolved in arterial blood to the percentage oxygen of an inhaled mixture of gasses in a biological specimen.
Free Protein S Activity Actual to Control Ratio Measurement
The determination of the ratio of the biological activity of free protein S in a subject's specimen when compared to the same activity in a control specimen. The measurement may be expressed as a ratio or percentage.
Type 1 Innate Lymphoid Cell to Leukocyte Ratio Measurement
The determination of the ratio of type 1 innate lymphoid cells to total leukocytes present in a sample. The measurement may be expressed as a ratio or percentage.
HLA-DR Antigen to Total Cell Ratio Measurement
The determination of the ratio of the human leukocyte antigen DR (HLA-DR) to total cells present in a sample. The measurement may be expressed as a ratio or percentage.
Gut-Homing Cytotoxic Memory T-Lymphocyte to Cytotoxic Memory T-Lymphocyte Ratio Measurement
The determination of the ratio of the gut-homing cytotoxic memory T-lymphocytes to total cytotoxic memory T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Kallikrein-7 Measurement
The determination of the amount of kallikrein-7 in a sample.
Gut-Homing Helper Effector Memory T-Lymphocyte Subpopulation to Helper Effector Memory T-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of gut-homing helper effector memory T-lymphocytes to total helper effector memory T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Parvovirus B19 IgM Antibody Measurement
The determination of the amount of parvovirus B19 IgM antibody present in a sample.
Coagulase Negative Staphylococcus DNA Measurement
The determination of the amount of DNA from any coagulase negative Staphylococcus species in a sample.
Abbott Alinity SARS-CoV-2 IgM Serology Assay
A proprietary chemiluminescent microparticle immunoassay (CMIA) used for the qualitative detection of IgM antibodies to SARS-CoV-2 in human serum and plasma on the Abbott Alinity i system. The presence of IgM antibodies may be associated with recent infection or may assist with the evaluation of disease course.
Neutralizing Binding Antidrug IgA Antibody Measurement
The determination of the neutralizing antidrug binding IgA antibody in a biospecimen.
Hazelnut Antigen IgE Antibody Measurement
The determination of the amount of hazelnut antigen IgE antibody in a sample.
Immunoglobulin M Positive Plasmablast Count
A measurement of the IgM positive plasmablasts in a sample.
Calcium Measurement
A quantitative measurement of the amount of calcium present in a sample.
APTT-LA Actual to Control Ratio Measurement
The determination of the ratio of the Lupus anticoagulant sensitive APTT in a subject's specimen compared to a control sample. The measurement may be expressed as a ratio or percentage.
Ebola Virus Specific IgM Antibody Secreting Cell Count
The determination of the number of Ebola virus-specific IgM antibody secreting cells in a biological sample.
Bacteroidia Measurement
The determination of the organisms that are not assigned to the species level but are assigned to the Bacteroidia phylum level in a sample.
Threonine to Creatinine Ratio Measurement
The determination of the ratio of threonine compared to creatinine present in a sample. The measurement may be expressed as a ratio or percentage.