Medical MCQ-prophylaxis for Pneumocystis carinii is indicated in HIV positive patents When CD4 count is-

prophylaxis for Pneumocystis carinii is indicated in HIV positive patents When CD4 count is-

<300 cells/mm3

< 200 cells / mm3

< 100 cells/mm3

< 50 cells / mm3

Question Category:

Medicine

Correct Answer:

< 200 cells / mm3

Description:

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

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