Test guide

CD45 to Lymphocyte Ratio Measurement

The determination of the ratio of CD45 expressing cells to total lymphocytes present in a sample. The measurement by be expressed as a ratio or percentage.

For professionalsReviewed 2026-10-20

What it is for

Source: National Cancer Institute, NCI Thesaurus 26.09d, C122106. 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

  • CD45 to Lymphocyte Ratio Measurement
  • PTPRC to Lymphocyte Ratio Measurement

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