How is a brain stroke different from brain dead and coma?

Question

How is a brain stroke different from brain dead and coma?

In: 3

Answer 1

Brain dead is dead. No brain activity.

Coma is a deep state of unconsciousness. People will not react to painful stimuli, etc. They are not dead and there is minimal brain activity. They may or may not recover from being in a coma.

A stroke (in the brain) is a failure of the circulatory system to provide oxygen to the brain. It can be caused by either a blockage (ischemic) or bleeding (hemorrhagic). Without oxygen, the brain tissue will begin to die. Depending upon severity and speed of intervention, a stroke can lead to minimal repercussions all they way up to coma or death.