Ethnocentrism
-noun
evaluation of other cultures according to preconceptions originating in the standards and customs of one's own culture.
I believe the answer is the Exhaustion stage because it is the bodies reaction to stress. The body becomes extremely susceptible to sickness because it seems to lose to respond to any new stress. Hope I helped!
Answer:
A. Negative feedback mechanism
I think that oxygen is needed , because it helps elevate the blood level and help oxygen spread to your brain/ heart.
The nurse would mostly likely tell the patient to try it again and give it time.