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The measurement of the number T lymphocytes, which are leukocytes that express CD3, in a cubic millimeter of blood. It is calculated by multiplying 1000 by both the total leukocyte count and the percent of T cells in the differential leukocyte count.
Tests
The total number of white blood cells that are basophils. It is calculated by multiplying the white blood cell count by the percent of basophils in the differential white blood cell count.
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The number of lymphocytes found in a given volume of blood.
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The total number of white blood cells that are eosinophils. It is calculated by multiplying the white blood cell count by the percent of eosinophils in the differential white blood cell count.
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The measurement of the number of helper T lymphocytes, which are T lymphocytes that express CD4, in a cubic millimeter of blood. It is calculated by multiplying 1000 by both the total leukocyte count and the percent of helper T cells in the differential leukocyte count.
