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.
Angiopoietin-Related Protein 3/8 Complex Measurement
The determination of the amount of a complex comprised of angiopoietin-related proteins 3 and 8 in a sample.
Monocytes to Macrocytes Ratio Measurement
The determination of the ratio of monocytes compared to macrocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Serum Sodium Measurement
A quantitative measurement of the amount of sodium present in a sample of serum.
Gamma Globulin to Total Protein Ratio Measurement
The determination of the ratio of gamma globulin compared to total protein present in a sample. The measurement may be expressed as a ratio or percentage.
MART-1 Antigen Measurement
The determination of the amount of melan-A in a sample.
Methcathinone Measurement
The determination of the amount of the methcathinone in a sample.
Barbiturate Drug Class Measurement
The determination of the amount of barbiturate class agents present in a sample.
Clostridium tetani Toxin Antibody Measurement
The determination of the amount of Clostridium tetani toxin antibody present in a sample.
Protein S Activity Actual to Control Ratio Measurement
The determination of the ratio of the biological activity of 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.
Enterotoxigenic Escherichia coli LtA, ST1a, and/or ST1b DNA Measurement
The determination of the amount of enterotoxigenic Escherichia coli LtA, ST1a and/or ST1b DNA present in a sample.
Total Assessed Cells Count
The determination of the total number of cells that are observed during the evaluation, or assessed as part of the protocol-defined assay.
LDH Isoenzyme 5 to LDH Ratio Measurement
The determination of the ratio of LDH isoenzyme 5 compared to total LDH present in a sample. The measurement may be expressed as a ratio or percentage.
Dietary Meat, Cured Measurement
A determination of the cured meat in a nutritional product or meal, or a portion thereof.
Streptococcus pneumoniae Serotype 12F IgG Antibody Measurement
The determination of the amount of Streptococcus pneumoniae serotype 12F IgG antibody present in a sample.
Culture Setup
The preparation work required for doing cell or tissue culture. This includes preparation of the medium and of the growth support material or growth chamber.
Iloperidone Measurement
The determination of the amount of iloperidone in a sample.
Skin-Homing Helper Central Memory T-Lymphocyte Count
The determination of the skin-homing helper central memory T-lymphocytes present in a sample.
Alpha Fetoprotein L2 Measurement
The determination of the amount of alpha fetoprotein L2 present in a sample.
Peripheral Helper T-Lymphocyte Subpopulation to Peripheral Helper T-Lymphocyte Subpopulation Ratio Measurement
The determination of a sub-population of peripheral helper T-lymphocytes to a sub-population of peripheral helper T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Thrombin Time Actual to Control Ratio Measurement
The determination of the ratio of the thrombin time in a subject's specimen compared to a control sample. The measurement may be expressed as a ratio or percentage.
Cytomegalovirus Antigen Measurement
The determination of the cytomegalovirus antigen present in a sample.
Sickle Cell Count
The determination of the number of sickle cells present in a sample.
Total Human Interferon Gamma Serum Measurement
The determination of the total amount of human interferon gamma present in a serum sample.
Scored Hepatocyte Count
The determination of the number of total number of hepatocytes that are scored.