Respiratory Medicine MCQ for NEET PG & FMGE

← Respiratory Medicine

A 60-year-old male presents with a 5-year history of cough and worsening dyspnea for 7 days. Physical examination reveals barrel chest. Chest X-ray shows increased lung translucency, widened intercostal spaces, and depressed diaphragms. Pulmonary function tests demonstrate RV/TLC=40%, MVV is 50% of predicted value, and FEV1/FVC=55%. The most likely diagnosis is:

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