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.
Squamous Transitional Epithelial Cell Count
The determination of the number of squamous transitional epithelial cells present in a urine sample.
Oxandrolone Measurement
The determination of the amount of oxandrolone present in a sample.
Factor VII Measurement
The determination of the amount of factor VII present in a sample.
MYCL Messenger RNA Expression Measurement
The determination of the expression levels of MYCL mRNA in a biological sample.
Absolute Blood Lymphocyte Count
The number of lymphocytes found in a given volume of blood.
UR-144 Measurement
The determination of the amount of the UR-144 in a sample.
Cytokeratin 16 Measurement
The determination of the amount of cytokeratin 16 present in a sample.
Herpes Simplex Virus 1 Measurement
The determination of the amount of herpes simplex virus 1 in a sample.
Granulocyte to Non-TBNK Leukocyte Ratio Measurement
The determination of the ratio of granulocytes to the non-classical monocytes to all leukocytes that are not T-cells, B-cells, or natural killer cells, present in a sample. The measurement may be expressed as a ratio or percentage.
Dimethylglycine Measurement
The determination of the amount of dimethylglycine in a sample.
D-Dimer Measurement
The determination of the amount of d-dimers present in a sample.
Beta Amyloid 42 Measurement
The determination of the amount of the 1-42 amino acid beta amyloid protein isoform present in a sample.
Immunoglobulin G Subclass 4 Measurement
The determination of the amount of immunoglobulin G subclass 4 present in a sample.
Apolipoprotein J Measurement
The determination of the amount of apolipoprotein J present in a sample.
Trifluoperazine Measurement
The determination of the amount of trifluoperazine in a sample.
Relative Increase in Treated Cell to Control Cell Ratio Measurement
A relative measurement (percentage) of the increase in the number of cells in treated culture to the increase in the number of cells in the control culture.
Enterobacter cloacae Measurement
The determination of the amount of Enterobacter cloacae in a sample.
Gut-Homing Helper Effector Memory T-Lymphocyte to Helper Effector Memory T-Lymphocyte Ratio Measurement
The determination of the ratio of the 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.
Double-Negative Myeloid-Derived Suppressor Cell Subpopulation to Double-Negative Myeloid-Derived Suppressor Cell Ratio Measurement
The determination of the ratio of a sub-population of double-negative myeloid-derived suppressor cells to all double-negative myeloid-derived suppressor cells present in a sample. The measurement may be expressed as a ratio or percentage.
Qualitative Clot Retraction Measurement
A qualitative assessment of clot retraction in a sample.
Respiratory Syncytial Virus RNA Measurement
The determination of the amount of respiratory syncytial virus RNA in a biological sample.
Dermatophagoides pteronyssinus Antigen IgG4 Antibody Measurement
The determination of the amount of Dermatophagoides pteronyssinus antigen IgG4 antibody present in a sample.
Absolute Helper T Lymphocyte Count
The measurement of the number of helper T lymphocytes, which are T lymphocytes that express CD4, in a cubic millimeter of blood. It is calculated by multiplying 1000 by both the total leukocyte count and the percent of helper T cells in the differential leukocyte count.
Neutrophilic Myelocyte Count
The determination of the number of neutrophilic myelocytes in a blood sample.