Restrictive Lung Disease USMLE Step 1 Practice Question
A 58-year-old underground coal miner with 30 years of occupational exposure presents with progressive dyspnea and nonproductive cough. Vital signs show HR 92/min, RR 22/min, BP 138/86 mmHg, SpO2 88% on room air. Chest radiograph demonstrates diffuse upper lobe nodular opacities with eggshell hilar lymphadenopathy. PFTs reveal reduced FVC and FEV1 with normal FEV1/FVC ratio. He denies fever, weight loss, and has no history of pleural plaques or bird exposure. Which diagnosis best explains these findings?
Answer choices
- ACoal workers pneumoconiosisCorrect answer
- BSilicosis
- CIdiopathic pulmonary fibrosis
- DAsbestosis
- EHypersensitivity pneumonitis
- FByssinosis (cotton dust lung)
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