Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
CPR Breathing, Air supply?
Just curious...when you give CPR to someone, you are supposed to be breathing into them from your exhaled air supply..isn't that pretty much valueless, since you exhale CO2 and they need oxygen?
thanks for the answers! I apreciate them, but really couldnt pick one as better than the other...(not counting the one thast ended up as some advertisement site!)
2 Answers
- DaveLv 71 decade agoFavorite Answer
Your exhaled air has 16% oxygen in it. It's most certainly better than nothing. Normally air is 21% O2.
- lilmaxLv 51 decade ago
Laura, when you breath, you inhale oxygen but you don't absorb all of it.
When you exhale you're exhaling carbon dioxide AND what's left of the oxygen that you inhaled.
Source(s): Medical assistant
