Spirometry — Patterns and Interpretation MCQ — NEET PG Practice Question | NEETPGAI
Spirometry — Patterns and Interpretation
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heart-pulse Physiology
A 58-year-old man with a 40 pack-year smoking history presents with progressive dyspnea on exertion over 6 months. He denies chest pain or orthopnea. On examination, he has diminished breath sounds bilaterally and prolonged expiration. Spirometry shows FEV₁ = 52% predicted, FVC = 78% predicted, FEV₁/FVC ratio = 0.58. DLCO is 65% predicted. What is the most likely diagnosis?
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