1. if the person is saying goodbye to everyone and saying sorry and how much they love them
2. if they write a note
3. when the person starts giving up on everything
4. if the person is drowning in self pity they tend to think suicidal
5. signs of being depressed or emotional outburst for no reason
Answer:
The answer is B.
Explanation:
A non-rebreather mask can deliver levels of the fraction of inspired oxygen (FIO2) as high as 100%.