A 59-year-old man comes to the physician because of a one-month history of progressive shortness of breath with minimal activity. His vitals are: temperature 98.7F, RR 15, HR 78, BP 130/80. Physical examination shows clubbing. Spirometry shows a normal FEV1/FVC and decreased lung capacity. CXR shows a reticular pattern. Which of the following pathologic changes is most likely in this patient?
Alveolar septum destruction
Bronchiolar constriction
Bronchiolar dysplasia
Bronchiolar mucous secretion
Interstitial fibrotic change
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Cut-to-the-chase Answer (0:43):
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HY USMLE Answer (3:38):
