Why is my CD4 CD* blood test low?
The CD4 cell is a type of white blood cell (called the helper T cell) which serves many functions including viral immunity. The count is low in the MS patient due to medication to treat the disease. Common medications that can do this include our immunosuppressant medications (i.e., Tecfidera and gilenya for instance). Certain infections, bone marrow disease, etc can also cause low counts. Your specific counts should be interpreted by your physician.
A. Scott Nielsen MD MMSc
Neurologist and MS Specialist at Kaiser Permanente