A patient is receiving oxygen by venturi mask at 40% resulti…

A patient is receiving oxygen by venturi mask at 40% resulting in adequate oxygenation. The patient will not leave the mask on and quickly desaturates when the mask is off. Which of the following would be a viable alternative to attempt to achieve approximately the same level of oxygen?

Upon entering the room to perform oxygen rounds on a patient…

Upon entering the room to perform oxygen rounds on a patient with severe COPD with CO2 retention on a 28% venturi mask you find the patient appears to be sleeping on his side with the blankets pulled up to his chin. Upon checking the name band the patient seems to be unresponsive to verbal stimuli and cannot be awoken. The patient has a respiratory rate of 6 and a heart rate of 110. The most likely cause of this is: