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.
Trichomonas vaginalis Measurement
The determination of the amount of Trichomonas vaginalis present in a sample.
Memory B-Lymphocyte cB1 Count
The determination of the number of the cB1 memory B-lymphocytes in a sample.
N-Acetyl Aspartate to Choline Ratio Measurement
The determination of the ratio of N-acetyl aspartate compared to choline present in a sample. The measurement may be expressed as a ratio or percentage.
Leukocyte Count
A test to determine the number of leukocytes in a biospecimen.
Peptidylprolyl Isomerase A Measurement
The determination of the peptidylprolyl isomerase A in a sample.
Serum Triglyceride Measurement
A quantitative measurement of the amount of triglycerides present in a sample of serum.
Monocyte Subpopulation to Monocyte Subpopulation Ratio Measurement
The determination of the ratio of a sub-population of monocytes to a sub-population of monocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Memory B-Lymphocytes to Total B-Lymphocytes Ratio Measurement
The determination of the ratio of memory B-lymphocytes compared to B-lymphocytes present in a sample.
Urine Ammonium Oxalate Crystal Measurement
The determination of the amount of ammonium oxalate crystals present in a urine sample.
Vitamin D Binding Protein Measurement
The determination of the amount of vitamin D binding protein in a sample.
CD40 Ligand Measurement
The determination of the amount of CD40 ligand present in a sample.
Beta-D-Glucan Assay
A laboratory assay designed to detect elevated levels of (1,3)-beta-D-glucan in serum as an indication of infection by certain fungi species.
Type 1 Innate Lymphoid Cell Subpopulation Count
A measurement of a sub-population of type 1 innate lymphoid cells present in a sample.
Total Protein Measurement
A quantitative measurement of the amount of total protein present in a sample.
Aspergillus Antibody Measurement
The determination of the amount of antibody to any member of the genus Aspergillus present in a sample.
Apolipoprotein E4 Measurement
The determination of the amount of apolipoprotein E4 present in a sample.
Mid-Molecule Parathyroid Hormone Measurement
The determination of the amount of mid-molecule parathyroid hormone present in a sample.
Antibody-Secreting B-Lymphocyte to Class-Switched Memory B-Lymphocyte Ratio Measurement
The determination of the ratio of antibody-secreting B-lymphocytes to total class-switched memory B-lymphocyte present in a sample. The measurement may be expressed as a ratio or percentage.
Sodium Clearance Measurement
The determination of the amount of the sodium clearance in a sample.
Stem Cell Memory Cytotoxic T-Lymphocyte Count
The determination of the amount of cytotoxic stem cell memory T-lymphocytes present in a sample.
Class-switched Memory B-Lymphocyte Subpopulation to Leukocyte Ratio Measurement
The determination of the ratio of a sub-population of class-switched memory B-lymphocytes to leukocytes present in a sample. The measurement may be expressed as a ratio or percentage.
N-Nitrosopyrrolidine Measurement
The determination of the amount of N-nitrosopyrrolidine in a sample.
Platelet Factor 4-Heparin Complex Induced Antibody Measurement
The determination of the amount of platelet factor-4 heparin complex induced antibody present in a sample.
CD73 Expression Measurement
The determination of cellular CD73 expression in a biological specimen.