1st April 2022

A 48-year-old gentleman presents with increased daytime sleepiness and poor sleep

A 48-year-old gentleman presents with increased daytime sleepiness and poor sleep. He admits to snoring since he was a teenager and has recently found himself waking up in the night time, with a nightmare of getting choked. It has become more difficult for him to stay awake during meetings at work. He smokes during his work breaks and drinks socially on the weekends. On physical examination, he is found to be obese with an average blood pressure of 156/120 mmHg. His nose has no turbinate hypertrophy or septal deviation. His oropharynx has a low-lying palate but no enlarged adenoids or tonsils.

Select the SINGLE most probable diagnosis from the list below. Select ONE option only.