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Obstructive sleep apnoea/hypopnoea syndrome — SCE Respiratory MCQ

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EasySleep MedicineObstructive sleep apnoea/hypopnoea syndromeSCE Respiratory

A 52-year-old lorry driver has loud snoring, witnessed apnoeas and daytime sleepiness. BMI is 36 kg/m2, Epworth score is 18 and oxygen saturation is 95% while awake. What is the most appropriate investigation?

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Correct answer: B — Home respiratory polygraphy

Suspected OSAHS with significant sleepiness should be investigated with sleep testing such as home respiratory polygraphy. Bronchoscopy and CTPA do not assess apnoea-hypopnoea burden. Alpha-1 antitrypsin testing is for selected emphysema phenotypes, not snoring and witnessed apnoeas.

Reference: https://www.brit-thoracic.org.uk/quality-improvement/guidelines/