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Politics : A US National Health Care System?
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To: Lazarus_Long who wrote (683)4/19/2005 10:09:08 AM
From: Wharf Rat  Read Replies (1) of 42652
 
I think brain death begins at 4-5 minutes. That's why we do cardiac compression; get the blood back to the brain. (Which, physiologically, is mostly where it goes. Body shuts down flow to skin, gut, etc. Keep the brain and heart going; it's really a wonderful response. Physiology is actually pretty cool, and amazing).

4-5 minutes does have at least one exception. Hypothermic drowning victims,, especially kids, can go as much as 45 minutes. The cold slows down O2 consumption that much :-)
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