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MediumRespiratory MedicineCOPD Exacerbationus-abimus-usmle-step-2us-usmle-step-3

A 68-year-old with COPD exacerbation has pH 7.28, PaCO₂ 60 mm Hg, and increased work of breathing despite bronchodilators and steroids. What is the best next step?

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