B Lymphocyte to Total Blood Cell Percent Measurement

**Semantic type:** Laboratory Procedure

**Definition:** The measurement of the ratio of B lymphocytes, which are leukocytes that express CD19 or CD20, to the total number of blood cells in a sample expressed as a percent value.

**Synonyms:** - % CD19+ or CD20+ B Cells - B Cell to Total Blood Cell Percent Measurement - CD19 Positive or CD20 Positive B Cell to Total Blood Cell Percent Measurement - CD19 Positive or CD20 Positive B Lymphocyte to Total Blood Cell Percent Measurement - CD19 or CD20 Expressing B Cell to Total Blood Cell Percent Measurement - CD19 or CD20 Expressing B Lymphocyte to Total Blood Cell Percent Measurement - Percent CD19 or CD20 Positive B Cells