Home > Health & Wellness > Health Library > CD4+ Cells
CD4+ cells are part of the
immune system and are a type of
white blood cell. White blood cells protect the body
against infection. CD4+ cells are also called T-lymphocytes, T-cells, or
HIV invades and destroys CD4+ cells. But the body
continues to produce new CD4+ cells to fight the HIV infection. If the
infection is not treated with medicines, the body gradually loses the ability
to produce enough CD4+ cells to replace the number that are being destroyed by
HIV. As the number of CD4+ cells in the blood drops, it becomes harder
for the immune system to fight infections.
CD4+ counts are measured every 3 to 4 months in people who are
infected with HIV. The CD4+ count is an important measurement of how HIV is
affecting your immune system and can help you decide when to begin treatment
for HIV or when you need to try a different combination of medicines.
April 5, 2012
E. Gregory Thompson, MD - Internal Medicine & Peter Shalit, MD, PhD - Internal Medicine
How this information was developed to help you make better health decisions.
To learn more visit Healthwise.org
© 1995-2014 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Call First Nurse 24 Hours a Day for free health care advice, resources and referrals!
Ames: 515-239-6877In Iowa: 800-524-6877
Search health information online in our Mulimedia Health Library.
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
Patient Privacy |
Net Learning for Employees |
MGMC PACS for Physicians
1111 Duff Avenue Ames, IA 50010 - 515-239-2011 - firstname.lastname@example.org
©2014 Mary Greeley Medical Center - All rights reserved.