COPD USMLE Step 1 Practice Question
A 27-year-old man presents with hemoptysis, fatigue, and cola-colored urine. Vital signs show BP 142/88 mmHg, HR 98/min, RR 22/min, SpO2 92% on room air. Serum creatinine is 2.1 mg/dL with proteinuria on urinalysis. Chest X-ray reveals bilateral alveolar infiltrates. Anti-type IV collagen antibodies are positive. He denies recent infections or smoking history. Which pulmonary finding is most likely present?
Answer choices
- ANoncaseating granulomas at the hilar nodes
- BBronchiectasis with mucus plugging
- CPleural plaques with ferruginous bodies
- DUpper lobe cavitary lesions
- EDiffuse alveolar hemorrhageCorrect answer
- FPulmonary edema with interstitial thickening
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