Indicators
25-OH Vitamin D
The main circulating vitamin D metabolite — the standard measure of vitamin D status.
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Indicators
The main circulating vitamin D metabolite — the standard measure of vitamin D status.
Glossary Term
The act of checking or adjusting (by comparison with a standard) the accuracy of a measuring instrument.
Glossary Term
An instrument designed to measure the size of an opening or one used to increase the diameter of an opening; can also refer to a standard or reference material used to set the operating parameters of an instrument.
Article
Research record from Diagnostics (Basel), 2026-10-07. PMID 42882394.
Article
Research record from Front Cell Infect Microbiol, 2026-07-28. PMID 42582033.
Glossary Term
The ratio of standard deviation to mean, expressed as a percentage or fraction.
Article
Research record from Diagnostics (Basel), 2026-03-19. PMID 41897652.
Indicators
Molecular detection of Chlamydia trachomatis and Neisseria gonorrhoeae nucleic acid.
Glossary Term
The probability that a test will produce a true negative result when used on non-effected subjects as compared to a reference or "gold standard". The specificity of a test can be determined by calculating: number of true negative results divided by the sum of true negative results plus number of false positive results.
Glossary Term
A PCR format that partitions each sample into thousands of sub-reactions and calls each partition positive or negative, giving absolute quantification without a standard curve. Useful for low-level targets, copy-number work, and reference material characterization; throughput and per-test cost differ from qPCR.
Tests
An index of the variation in the size of the red cells and can be used to detect subtle degress of anisocytosis. It is computed directly from the RBC histogram and is calculated as a standard statictical value, the coefficient of variation of the red cell volume ditribution (ratio of standard deviation and mean copuscular volume).
Article
Research record from J Microbiol Methods, 2026-09-26. PMID 42800479.