Test guide

Unconventional Class-switched IgM-positive Memory B-Lymphocyte to Unconventional Class-switched Memory B-Lymphocyte Ratio Measurement

The determination of the ratio of the IgM+ class-switched unconventional memory B-lymphocytes to total class-switched unconventional memory B-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.

For professionalsReviewed 2026-10-20

What it is for

Source: National Cancer Institute, NCI Thesaurus 26.09d, C209479. 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

  • Unconventional Class-switched IgM-positive Memory B-Lymphocyte to Unconventional Class-switched Memory B-Lymphocyte Ratio Measurement

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