au-amc MCQ (SBA): Obstructive sleep apnoea

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MediumRespiratoryObstructive sleep apnoeaau-amcau-racp

A 59-year-old obese woman with long-standing COPD presents with increasing daytime somnolence, loud snoring and morning headaches. Her partner reports witnessed apnoeas at night. She drinks two glasses of wine nightly and is on nocte diazepam for insomnia. What is the most appropriate next investigation?

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