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

Question

Quizplus · Accepted Answer

Coma is often caused by significant brain injury, such as trauma to the cerebral cortex or brain stem.

Answer: B
 During coma, the brain is still active and consuming oxygen, although at a lower rate than during wakefulness.

Answer: D
 Coma is not a form of sleep, although those in a coma may appear to be asleep. It is a state of profound unconsciousness from which the individual cannot be awakened.

Which Statement About Coma Is True