Test guide

Activated CD4 Expressing T Lymphocyte to Total T Lymphocyte Percent Measurement

The measurement of the ratio of activated T-lymphocytes expressing CD4 to the total number of T-lymphocytes in a sample expressed as a percent value.

For professionalsReviewed 2026-10-20

What it is for

Source: National Cancer Institute, NCI Thesaurus 26.09d, C212104. 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

  • Activated CD4 Expressing T Cell to Total T Cell Percent Measurement
  • Activated CD4 Expressing T Lymphocyte to Total T Lymphocyte Percent Measurement
  • Activated CD4 Expressing T-Cell to Total T-Cell Percent Measurement
  • Activated CD4 Expressing T-Lymphocyte to Total T-Lymphocyte Percent Measurement
  • Activated CD4 Positive T Cell to Total T Cell Percent Measurement
  • Activated CD4 Positive T Lymphocyte to Total T Lymphocyte Percent Measurement
  • Activated CD4 Positive T-Cell to Total T-Cell Percent Measurement
  • Activated CD4 Positive T-Lymphocyte to Total T-Lymphocyte Percent Measurement
  • Activated Helper T Lymphocyte to Total T Lymphocyte Percent Measurement

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