A 65-year-old gentleman with a BMI of 45 was waiting for his respiratory outpatient clinic appointment. While waiting, he fell asleep. A medical emergency was called because he could not be woken up. On arrival of the MET team the patient is found to have a blood pressure of 140/70, a heart rate of 100bpm and oxygen  sats of 68% on room air. He is breathing spontaneously but requires airway support.

His GCS is 3/15. Supplemental oxygen is applied and the arterial blood gas is obtained. What probable diagnosis can be inferred from the arterial blood gas? What would be the management for such a case? *This case is from the Docplexus Editorial Team and is for educative purpose only.