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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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prophylaxis for Pneumocystis carinii is indicated in HIV positive patents When CD4 count is-
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The correct answer is  Low CD4 count correlated with risk of PCP (p < 0.0001); 79% had CD4 counts less than 100/microl and 95% had CD4 counts less than 200/microl. Bacterial pneumonia has been linked to several HIV-related factors, including CD4 counts, having an uncontrolled viral load, and not being on antiretroviral therapy. HIV-positive people with a weak immune system, paicularly a CD4 count below 200 cells/mm3, are at greatest risk. Ref Harrison20th edition pg 1107