T-cell subsets CD4 and CD8 panel
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.
Source: MedlinePlus, U.S. National Library of Medicine
9 tests in this panel
Adult reference ranges, attributed to the labs that publish them. A dash means we hold no cited adult range for that test yet.