Restrictive Lung Disease USMLE Step 1 Practice Question
A 62-year-old man with asbestos exposure 40 years ago presents with progressive dyspnea and pleuritic chest pain. Vital signs: BP 138/82, HR 92, RR 22, SpO2 88% on room air, afebrile. Chest X-ray shows bilateral pleural thickening and calcified plaques. Pulmonary function testing demonstrates FVC 62% predicted. Notably, no fever or productive cough is present. Which pulmonary function test pattern would you expect in this patient?
Answer choices
- AReduced FVC with increased residual volume
- BReduced FEV1/FVC ratio with increased total lung capacity
- CIncreased FVC with reduced DLCO
- DNormal spirometry with elevated FEV1/FVC ratio
- EReduced FVC with normal FEV1/FVC ratio and reduced DLCOCorrect answer
- FReduced FEV1 with normal FVC and increased FEV1/FVC ratio
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