13th January 2024

A 68-year-old gentleman has an inpatient Polysomnogram to investigate his symptoms of daytime sleepiness.

A 68-year-old gentleman has an inpatient Polysomnogram to investigate his symptoms of daytime sleepiness. He describes falling asleep when reading and watching television with his family. He has previously had a stroke, is obese and has Type 2 Diabetes Mellitus. After his polysomnogram, the results show that he has had 16 episodes/hour where he had an apnoea with preserved respiratory effort and 4 episodes/hour where he had an apnoea without any respiratory effort. In addition, his oxygen saturations dropped to 89% while asleep. 

How would you classify the severity of his underlying diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.