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A member asked:
How long can it take for the brain to die from suffocation?
A doctor has provided 1 answer
Injury starts @ 4min: The exact speed of brain cell injury depends on a variety of factors including blood flow, oxygen supply, body temperature, blood glucose etc.Injury to cells is expected after 4 minutes without oxygen as the blood oxygen content drops to critical levels. Part of brain function might recover if oxygen was suddenly available, but as time passed the point of no return would be reached.
Answered 6/22/2013
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