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.
Bioavailable Testosterone Measurement
The determination of the amount of bioavailable testosterone present in a sample.
Blood Typing Test
Clinical laboratory tests that detect and identify the antigens expressed by red blood cells to determine a subject's blood type.
Vitamin B12 Measurement
A quantitative measurement of the amount of vitamin B12 present in a sample.
Beta-2 Glycoprotein 1 IgA Antibody Measurement
The determination of the amount of beta-2 glycoprotein 1 IgA antibody present in a sample.
Sapovirus Genogroups I, II, IV, and/or V RNA Measurement
The determination of the amount of Sapovirus genogroups I, II, IV and/or V RNA present in a sample.
Streptococcus pneumoniae Serotype 14 IgG Antibody Measurement
The determination of the amount of Streptococcus pneumoniae serotype 14 IgG antibody present in a sample.
Anti-DNA Antibody Measurement
The determination of the amount of anti-DNA antibodies present in a sample.
CD198 Expression Measurement
The determination of cellular CD198 expression in a biological specimen.
Interferon Regulatory Factor 4 Measurement
The determination of the amount of interferon regulatory factor 4 protein in a sample.
JWH-200 Measurement
The determination of the amount of the JWH-200 in a sample.
Giardia DNA Measurement
The determination of the amount of DNA from any member of the genus Giardia in a biological sample.
Metanephrine Measurement
The determination of the amount of metanephrine present in a sample.
Helper T-Lymphocytes to Leukocytes Ratio Measurement
The determination of the ratio of the helper T-lymphocytes to leukocytes present in a sample. The measurement may be expressed as a ratio or percentage.
German Cockroach Antigen IgG4 Antibody Measurement
A measurement of the German cockroach (Blattella germanica) antigen IgG4 antibody in a biological specimen.
Interferon-Induced Protein 44-Like Measurement
The determination of the amount of interferon-induced protein 44-Like present in a sample.
Neutralizing Cross-Reacting Binding Antidrug Antibody Measurement
The determination of the neutralizing cross-reactive binding antidrug antibody in a biological sample.
Choriogonadotropin Measurement
The determination of the amount of choriogonadotropin present in a sample.
Protein to Creatinine Ratio Measurement
The determination of the ratio of total protein compared to creatinine present in a sample. The measurement may be expressed as a ratio or percentage.
Megakaryoblast Cell Count
The determination of the amount of megakaryoblasts present in a sample.
PB-22 3-carboxyindole Measurement
The determination of the amount of the PB-22 3-carboxyindole in a sample.
Pimozide Measurement
The determination of the amount of pimozide in a sample.
Crenated Cell Measurement
The determination of the number of crenated red blood cells present in a sample.
Oligoclonal Bands Measurement
The determination of the amount of oligoclonal bands in a biological specimen.
Pyridinoline Measurement
The determination of the amount of pyridinoline present in a sample.