Description
Why It’s Done:
The CD4/CD8 test is used to:
• Diagnose and monitor HIV/AIDS by assessing immune function.
• Evaluate the progression of HIV and guide treatment decisions.
• Monitor response to antiretroviral therapy (ART) in HIV-positive patients.
• Investigate causes of immune system disorders or immunodeficiency.
• Assess immune recovery following bone marrow or organ transplants.
• Help diagnose certain autoimmune diseases, cancers, or infections that affect T-cell populations.
Preparation:
• No fasting or special preparation is typically needed.
• Inform your doctor about any medications, especially those that may affect immune function (e.g., corticosteroids or immunosuppressants).
• A blood sample will be collected from a vein in your arm


