Restrictive Lung Disease USMLE Step 1 Practice Question
A 52-year-old man with a 20-year history of occupational asbestos exposure presents with progressive dyspnea and pleuritic chest pain. Vital signs: BP 138/82, HR 92, RR 22, SpO2 88% on room air. Chest X-ray demonstrates bilateral lower lobe fibrosis with pleural thickening. Pulmonary function testing reveals reduced FVC (62% predicted) with normal FEV1/FVC ratio (0.78). He denies wheezing. Which diagnosis best explains these findings?
Answer choices
- AIdiopathic pulmonary fibrosis
- BAsbestosisCorrect answer
- CHypersensitivity pneumonitis
- DChronic obstructive pulmonary disease
- ESilicosis
- FMesothelioma
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