Helper T-Lymphocyte Subpopulation to Total Lymphocyte Ratio Measurement

**Semantic type:** Laboratory Procedure

**Definition:** The determination of the ratio of a helper T-lymphocyte sub-population compared to total T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.

**Synonyms:** - T-Lymphocytes Helper Subpopulation/Lymphocytes - TLYHSLY - TLym Help Sub/Lym - TLym Help Sub/Lym