Asthma USMLE Step 1 Practice Question
A 42-year-old man from a tuberculosis-endemic region presents with one month of persistent cough, night sweats, and 8-lb weight loss. He reports intermittent hemoptysis but denies dyspnea. Vital signs: BP 128/76, HR 92, RR 18, Temp 37.8°C, SpO2 96% on room air. Chest radiograph reveals cavitary lesions in bilateral upper lobes. Sputum acid-fast bacilli smear is positive. Which of the following is the most likely diagnosis?
Answer choices
- AReactivation tuberculosisCorrect answer
- BPrimary tuberculosis
- CSarcoidosis
- DLung abscess from aspiration
- EHistoplasmosis
- FPulmonary coccidioidomycosis
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations — plus adaptive practice that targets your weak areas — with a free MedBoardPRO account.