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.
Type 2 Innate Lymphoid Cell to Innate Lymphoid Cell Ratio Measurement
The determination of the ratio of type 2 innate lymphoid cells to total innate lymphoid cells present in a sample. The measurement may be expressed as a ratio or percentage.
Kidney Injury Molecule-1 Measurement
The determination of the amount of kidney injury molecule-1 present in a sample.
Beta-lactamase Positive Bacteria Measurement
The determination of the amount of beta-lactamase positive bacteria in a sample.
Macrophage to Myeloid Cell Ratio Measurement
The determination of the ratio of macrophages to myeloid cells present in a sample. The measurement may be expressed as a ratio or percentage.
Vacuolated Lymphocyte Count
The determination of the amount of vacuolated lymphocytes present in a sample.
MSD V-PLEX SARS-CoV-2 Panel 2 Kit N IgM Serology Assay
A proprietary serology assay that can be used to measure IgM antibodies against the SARS-CoV-2 nucleocapsid protein (N).
Deoxyhemoglobin Measurement
The determination of the amount of deoxyhemoglobin present in a sample.
Bizarre Platelet Count
The determination of the amount of bizarre platelets present in a sample.
Immature Natural Killer Cell to Natural Killer Cell Ratio Measurement
The determination of the ratio of the immature natural killer cells to total natural killer cells present in a sample. The measurement may be expressed as a ratio or percentage.
Free Testosterone to Testosterone Ratio Measurement
The determination of the ratio of free testosterone compared to total testosterone present in a sample. The measurement may be expressed as a ratio or percentage.
Turbidity Measurement
The determination of the opacity of a sample.
Sertraline Measurement
The determination of the amount of sertraline present in a sample.
Central Memory Helper T-Lymphocyte Sub-Population Count
The determination of the number of a subpopulation of helper central memory T-lymphocytes in a sample.
Degenerated Leukocyte Count
The determination of the amount of degenerated leukocytes (leukocytes that show deterioration in form or function) present in a sample.
Gamma Tocopherol Measurement
The determination of the amount of gamma tocopherol present in a sample.
Interleukin-2 Receptor to Lymphocyte Ratio Measurement
The determination of the ratio of the concentration of interleukin-2 receptor to the number of lymphocytes present in a biological sample. The measurement may be expressed as a ratio or percentage.
Oncostatin M Measurement
The determination of the amount of oncostatin M in a biological sample.
Double-Negative T-Lymphocyte Subpopulation Count
The determination of the number of sub-population of double-negative T-lymphocytes (negative for both CD4 and CD8) in a sample.
Conventional Stem Cell Memory T-Lymphocyte Subpopulation Count
The determination of the number of sub-population of conventional stem cell memory T-lymphocytes in a sample.
Choline to Creatine Ratio Measurement
The determination of the ratio of choline compared to creatine present in a sample. The measurement may be expressed as a ratio or percentage.
Partial Pressure of Carbon Dioxide Adjusted for Body Temperature Measurement
The determination of the partial pressure of carbon dioxide, adjusted for body temperature, present in a sample.
Naive Regulatory Helper T-Lymphocyte Subpopulation to Naive Regulatory Helper T-Lymphocyte Subpopulation Ratio Measurement
The determination of a sub-population of helper regulatory naive T-lymphocytes to a sub-population of helper regulatory naive T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Industrial Mix Antigen IgE Antibody Measurement
A measurement of the industrial mix antigen IgE antibody in a biological specimen.
Helper Gamma-Delta T-Lymphocyte Subpopulation Count
The determination of the number of a subpopulation of helper gamma-delta T-lymphocytes in a sample.