au-amc MCQ (SBA): COPD long-term oxygen therapy

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HardRespiratoryCOPD long-term oxygen therapyau-amcau-racp

A 65-year-old man with a 40 pack-year smoking history presents with a chronic cough and sputum production. Spirometry shows FEV₁/FVC ratio of 0.55 and FEV₁ 60% predicted, with minimal reversibility. According to COPD-X, which intervention provides the greatest mortality benefit?

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au-amc MCQ: COPD long-term oxygen therapy — Answer & Explanation | iat