Test guide
Tryptophan to Creatinine Ratio Measurement
The determination of the tryptophan to creatinine in a biological sample. The measurement may be expressed as either a ratio or a percentage.
What it is for
Source: National Cancer Institute, NCI Thesaurus 26.09d, C163493. Unmodified NCI definition, CC BY 4.0. Source identity and classification checked automatically on 2026-10-20.
Limitations
Terminology reference for a laboratory procedure. The source definition does not establish routine clinical availability, validated specimen types, reference intervals, product authorization or suitability for an individual. Consult the performing laboratory for its validated method and interpretation.
Also known as
- Tryptophan to Creatinine Ratio Measurement
Reviewed products
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