Tuesday, August 13, 2019

TB test in HIV

Q: Below which CD4 count tuberculin skin test stays negative in HIV patients?

Answer: 300 cells/microL

Tuberculin skin test is still a useful test in HIV patients with positive read at >5 mm. Tuberculin test depends upon the CD4 count so the test become meaningless below 300 cells/microL.



1. https://www.cdc.gov/mmwr/preview/mmwrhtml/00031075.htm

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