Which statement about coma is true?
A) Coma is neurologically identical to syncope.
B) Coma may be caused by widespread cerebral or brain stem trauma.
C) During coma, brain oxygen consumption resembles that of a waking state.
D) Coma is a form of deep sleep.

Question

Quizplus · Accepted Answer

Coma can be caused by widespread cerebral or brain stem trauma. It is not identical to syncope, which is a brief loss of consciousness due to a temporary decrease in blood flow to the brain. Brain oxygen consumption during coma is significantly reduced compared to that of a waking state. Coma is not a form of deep sleep, as it is a state of unresponsiveness from which the patient cannot be awakened.

Which Statement About Coma Is True