CD4 Count Test-Normal Range

CD4 count test measures how many CD4 cells in the blood. CD4 cell is a type of white blood cell which is called T-cell, functioned as finding and destroying bacteria, viruses, and other invading germs.

CD4 count test plays an important role in measuring the strength of immune system if you have been diagnosed with HIV (human immunodeficiency virus) infection.

The normal CD4 count ranges from 500-1200 cells per cubic millimeter of blood in adults and teens. CD4 counts are usually higher in the evening and lower in the morning.

Lower levels of CD4 counts (than normal) indicates HIV infection is progressing; Lower than 200 cells per cubic millimeter of blood indicates that you are susceptible to a variety of opportunistic and fatal infections.

Normal levels of CD4 counts indicates HIV infection has not affected the immune system.

Keywords: CD4 Count; CD4 Lymphocyte Count; CD4 Percent; T-helper Cells; T4 Count

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.