HIV opportunistic infection prevention — USMLE Step 3 MCQ
Instant feedback + full explanation. One question, done properly.
Educational content. Not a substitute for clinical judgement or local policy.
Reveal the answer and explanation
Correct answer: B — Start trimethoprim-sulfamethoxazole prophylaxis
TMP-SMX prevents Pneumocystis and toxoplasmosis in patients with HIV and CD4 counts below 200/mm3 when tolerated.
Reference: DHHS/NIH HIV Opportunistic Infection Guidelines