3 Months Of Exertional in Medicine / Internal Medicine — 60yo Man | Respiratory / Pulmonology | SMLE Q#17760
SMLE Question #17760
Medicine / Internal Medicine
Respiratory / Pulmonology
Objective: OBJ-RESP-ABG-CHRONIC-BRONCHITIS
Last updated: February 2026
A 60-year-old man with a 20-pack-year smoking history presents with 3 months of exertional dyspnea and daily productive cough. He reports a similar episode last year that improved with inhalers but did not fully resolve. He denies pleuritic chest pain and hemoptysis. Examination shows central cyanosis and diffuse expiratory wheezes. Arterial blood gas on room air is shown. What is the most likely diagnosis?
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