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.
CD137 Expression Measurement
The determination of cellular CD137 expression in a biospecimen.
Gut-Homing Cytotoxic Memory T-Lymphocyte to Cytotoxic T-Lymphocyte Ratio Measurement
The determination of the ratio of the gut-homing cytotoxic memory T-lymphocytes to total cytotoxic T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
CNS Affecting Drug Measurement
The determination of the amount of any drug that affects the central nervous system (CNS) present in a sample.
Plasma Cell to Antibody-secreting B-Lymphocyte Ratio Measurement
The determination of the ratio of Plasma cells to B-lymphocytes Ab-Secreting present in a sample. The measurement may be expressed as a ratio or percentage.
Kallikrein-5 Measurement
The determination of the amount of kallikrein-5 in a sample.
Alpha-Smooth Muscle Actin Measurement
The determination of the amount of alpha-smooth muscle actin present in a sample.
Bilirubin Crystal Measurement
The determination of the amount of bilirubin crystals present in a sample.
Retinol Binding Protein to Creatinine Ratio Measurement
The determination of the ratio of retinol binding protein compared to creatinine present in a sample. The measurement may be expressed as a ratio or percentage.
Mycoplasma pneumoniae DNA Measurement
The determination of the amount of Mycoplasma pneumoniae DNA in a biological sample.
Serum Hexosaminidase A and Total Hexosaminidase Measurement
The determination of the total amount of hexosaminidase and the ratio of hexosaminidase A to total hexosamindase present in a serum sample.
Double-Negative Myeloid-Derived Suppressor Cell to Myeloid-Derived Suppressor Cell Ratio Measurement
The determination of the ratio of the double negative myeloid-derived suppressor cells to all myeloid-derived suppressor cells present in a sample. The measurement may be expressed as a ratio or percentage.
Human Papillomavirus Type 52 DNA Measurement
The determination of the Human papillomavirus type 52 DNA in a sample.
Fibrinogen Measurement
A quantitative measurement of the amount of fibrinogen present in a sample.
Regulatory Memory Helper T-Lymphocyte to Regulatory Helper T-Lymphocyte Ratio Measurement
The determination of the ratio of T-lymphocytes helper regulatory memory to T-lymphocytes helper regulatory present in a sample. The measurement may be expressed as a ratio or percentage.
Toscana Virus RNA Measurement
The determination of the amount of Toscana virus RNA in a sample.
Prostaglandin D2 Measurement
The determination of the amount of the prostaglandin D2 in a sample.
Extracellular Water Measurement
A measurement of the quantity of water in the extracellular compartments within the body.
Phosphatidylcholine to Albumin Ratio Measurement
The determination of the ratio of phosphatidylcholine compared to albumin present in a sample. The measurement may be expressed as a ratio or percentage.
Apolipoprotein A1 Measurement
The determination of the amount of apolipoprotein A1 present in a sample.
Myeloblast to Total Cell Ratio Measurement
The determination of the ratio of myeloblasts compared to total cells present in a sample. The measurement may be expressed as a ratio or percentage.
Differential Leukocyte Count
A hematologic procedure for the evaluation of the qualitative and quantitative characteristics of the white cells in peripheral blood smears and bone marrow aspirates.
Hemoglobin C Measurement
The determination of the amount of hemoglobin C present in a sample.
Acetylcholinesterase Measurement
The determination of the amount of acetylcholinesterase present in a sample.
Pro-gastrin Releasing Peptide Measurement
The determination of the amount of pro-gastrin releasing peptide present in a sample.