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Tests
The determination of the ratio of T-lymphocytes helper 9 sub-population to T-lymphocytes helper 9 present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
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.
Tests
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.
Tests
The determination of the number of helper alpha-beta T-lymphocytes in a sample.
Tests
A CD4 count is a blood test that measures the number of CD4 cells in a sample of your blood. CD4 cells are a type of white blood cell that circulates throughout the body in the blood. They're also called CD4 T lymphocytes or "helper T cells." That's because they help fight infection by triggering your immune system to destroy viruses, bacteria, and other germs that may make you sick.
Tests
The determination of the number of a subpopulation of helper central memory T-lymphocytes in a sample.
Tests
The determination of the ratio of T-lymphocytes helper central memory sub-population to T-lymphocytes helper central memory present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of the conventional central memory T-lymphocytes to helper T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of the conventional effector memory T-lymphocytes to helper T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of helper regulatory effector T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of helper regulatory effector T-lymphocytes to T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the number of a subpopulation of helper effector T-lymphocytes in a sample.
