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.
Plasmablast Subpopulation Count
The determination of a sub-population of plasmablasts in a sample.
Propionate Measurement
The determination of the amount of propionate in a sample.
Severe Acute Respiratory Syndrome Coronavirus 2 Antibody Measurement
The determination of the amount of severe acute respiratory syndrome coronavirus 2 antibody in a sample.
Streptococcus anginosus Measurement
The determination of the amount of Streptococcus anginosus in a sample.
Abbott Alinity SARS-CoV-2 IgG Serology Assay
A proprietary chemiluminescent microparticle immunoassay (CMIA) used for the qualitative detection of IgG antibodies to SARS-CoV-2 in human serum and plasma on the Abbott Alinity i system. The persistence of immunoglobulin class G (IgG) antibodies may identify people who have been infected in the past, recovered from the illness, and possibly developed immunity.
Charcot-Leyden Crystal Measurement
The determination of the Charcot-Leyden crystals present in a sample.
Human Herpesvirus 6 Measurement
The determination of the human herpesvirus 6 in a sample.
Glutamate Measurement
The determination of the amount of glutamate present in a sample.
Calcium to Phosphorus Ratio Measurement
The determination of the ratio of calcium to phosphorus in a sample. The measurement may be expressed as a ratio or percentage.
Hippuric Acid Measurement
The determination of the amount of hippuric acid present in a sample.
Immunoglobulin G Positive Plasmablast Subpopulation to Total Immunoglobulin G Positive Plasmablast Ratio Measurement
The determination of the ratio of a sub-population of IgG positive plasmablasts to total IgG positive plasmablasts present in a sample. The measurement may be expressed as a ratio or percentage.
Type 4 Myeloid Dendritic Cell to Leukocyte Ratio Measurement
The determination of the ratio of type 4 myeloid dendritic cells to leukocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Phospholipid Scramblase 1 Measurement
The determination of the amount of phospholipid scramblase 1 present in a sample.
Intermediate Monocyte Subpopulation to Non-TBNK Leukocyte Ratio Measurement
The determination of the ratio of a sub-population of intermediate 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.
Circulating Prostate Tumor Cell Count
The determination of the amount of circulating prostate tumor cells present in a sample.
P100 Polymyositis-scleroderma Autoantigen Antibody Measurement
The determination of the P100 polymyositis-scleroderma autoantigen antibody present in a sample.
Human Papillomavirus Type 54 Measurement
The determination of the amount of Human papillomavirus type 54 in a sample.
MX1 Expression Measurement
The determination of cellular MX1 protein expression in a biospecimen.
Helper T-Lymphocyte to Non-NKT T-Lymphocyte Ratio Measurement
The determination of the ratio of helper T-lymphocytes to non-NKT T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Platelet Endothelial Cell Adhesion Molecule 1 Measurement
The determination of the amount of platelet endothelial cell adhesion molecule 1 in a biological sample.
Endocrine Test
A laboratory procedure that tests the function of an endocrine organ and measures the amount of a hormone present in a sample.
Hemoglobin C Crystals Measurement
The determination of the amount of hemoglobin c crystals present in a sample.
25-Hydroxycholesterol Measurement
The determination of the amount of 25-hydroxycholesterol present in a sample.
Complement C5b-9 Measurement
The determination of the amount of complement C5b-9 present in a sample.