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CD4 Count

Also known as: T4 count, T-helper cells
Related tests: HIV viral load
At A Glance
 
Why get tested?
To measure the strength of your immune system if you’ve been diagnosed with HIV infection

When to get tested?
If you’ve been diagnosed with HIV, to get a baseline assessment of your immune system; four weeks after starting anti-HIV therapy and then every three to four months if you continue therapy

Sample required?
A blood sample drawn from a vein in your arm



This article was last reviewed on March 7, 2005.
 
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