Absolute Natural Killer Cell Count

**Semantic type:** Laboratory Procedure

**Definition:** The measurement of the number of natural killer cells, which are leukocytes that express CD16 and CD56, in a cubic millimeter of blood. It is calculated by multiplying 1000 by both the total leukocyte count and the percent of natural killer cells in the differential leukocyte count.

**Synonyms:** - Absolute NK Cell Count - Absolute NKCE - Natural Killer Cell to Total Leukocyte per Cubic Millimeter Measurement