Restrictive Lung Disease USMLE Step 1 Practice Question
A 22-year-old tall, thin man develops acute pleuritic right-sided chest pain and dyspnea while playing basketball. Vital signs show BP 118/76 mmHg, HR 102/min, RR 22/min, temperature 37.2°C, and SpO2 92% on room air. Examination reveals decreased breath sounds at the right apex with normal tracheal position. Chest radiograph shows a small right apical pneumothorax without mediastinal shift. He denies recent trauma or prior lung disease. Which diagnosis is most likely?
Answer choices
- APleural effusion
- BPulmonary embolism
- CSpontaneous pneumothoraxCorrect answer
- DPrimary pulmonary hypertension due to BMPR2 mutation
- ECommunity acquired pneumonia
- FAcute coronary syndrome with pleuritic referred pain
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