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MediumRespiratoryCOPD exacerbation managementau-acemau-amc

A 74-year-old man with known COPD presents with increased breathlessness, wheeze and purulent sputum for 3 days. He is afebrile with oxygen saturation 92% on room air, RR 24/min. There are no signs of consolidation. What is the most appropriate initial management?

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