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.
Immunoglobulin G to Albumin Ratio Measurement
The determination of the ratio of IgG compared to albumin present in a sample. The measurement may be expressed as a ratio or percentage.
Cytotoxic Terminally Differentiated Exhausted T-Lymphocyte Count
The determination of the amount of cytotoxic terminally differentiated exhausted T-lymphocytes present in a sample.
Decanoylcarnitine Measurement
The determination of the amount of decanoylcarnitine present in a sample.
Human Coronavirus 229E Measurement
The determination of the amount of Human Coronavirus 229E in a sample.
Stem Cell Memory Helper T-Lymphocyte Subpopulation to Helper T-Lymphocyte Ratio Measurement
The determination of the ratio of T lymphocytes helper stem cell memory sub-population to T-lymphocytes helper present in a sample. The measurement may be expressed as a ratio or percentage.
Wax Ester Measurement
The determination of the amount of wax ester in a sample.
Benzoylecgonine Measurement
The determination of the amount of benzoylecgonine, the primary metabolite of cocaine, present in a sample.
Hepatitis D Virus IgM Antibody Measurement
The determination of the amount of hepatitis D virus IgM antibody in a biological specimen.
Blood Chemistry Measurement
The determination of the measured concentrations of chemical constituents of the blood by assay in a clinical laboratory.
Tumor Associated Calcium Signal Transducer 2 Measurement
A measurement of the tumor associated calcium signal transducer 2 in a sample.
Burkholderia stabilis Measurement
The determination of the amount of Burkholderia stabilis in a sample.
Desmethylcitalopram Measurement
The determination of the amount of desmethylcitalopram in a sample.
Small-Colony Variant Pseudomonas aeruginosa Measurement
The determination of the amount of small-colony variant Pseudomonas aeruginosa present in a sample.
HIV-1 and HIV-2 Antibodies and HIV p24 Antigen Measurement
The determination of the amount of HIV-1 antibody, HIV-2 antibody, and HIV p24 antigen present in a sample.
Atypical Neutrophil Cytoplasmic Antibody Measurement
The determination of the amount of atypical neutrophil cytoplasmic antibody present in a sample.
Cholecystokinin Measurement
The determination of the amount of cholecystokinin hormone present in a sample.
Molindone Measurement
The determination of the amount of molindone in a sample.
EUROIMMUN Anti-SARS-CoV-2-QuantiVac-ELISA IgG Serology Assay
A proprietary enzyme-linked immunosorbent assay for quantitative detection of IgG antibodies against SARS-CoV-2 using the S1 domain of the spike protein, including the receptor binding domain (RBD).
Amyloid Beta 1-41 Measurement
The determination of the amount of amyloid beta protein which is composed of peptides 1 to 41 in a sample.
Unconventional Class-switched IgM-positive Memory B-Lymphocyte to Unconventional Class-switched Memory B-Lymphocyte Ratio Measurement
The determination of the ratio of the IgM+ class-switched unconventional memory B-lymphocytes to total class-switched unconventional memory B-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
CD154 Expression Measurement
The determination of cellular CD154 expression in a biological specimen.
Ethyl Glucuronide Measurement
The determination of the amount of ethyl glucuronide present in a sample.
CA125 II Assay
A second generation radioimmunoassay to measure serum levels of CA-125.
Diacetyl Measurement
The determination of the amount of diacetyl in a sample.