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EasyRespiratoryCOPD exacerbation managementca-mccqe1ca-rcpsc-em

A 72-year-old woman with COPD presents to the emergency department with increased dyspnoea, wheeze and purulent sputum over 3 days. She is afebrile, saturations are 90% on room air and chest x-ray shows no pneumonia. What is the most appropriate initial management?

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