Comments on: In Mouth To Mouth Cpr, Are You Not Exhaling Co2 Into The Person’s Mouth? So How Is That Going To Help Them?

By: Madkins0

Madkins0 — Thu, 26 Nov 2009 08:25:27 +0000

The air you breathe in is about 20-22% oxygen, and when you breathe out, it is still 15-16% oxygen- plenty to help someone in trouble!

By: You

You — Thu, 26 Nov 2009 06:16:57 +0000

When you take the breath you don’t absorb all the oxygen, especially if you do it quickly, leaving plenty left for them.

By: Laura D

Laura D — Thu, 26 Nov 2009 05:31:55 +0000

Most of the air you breathe is not oxygen anyway. Only about 21% is. Anyway, yes there is less oxygen in the air you are breathing into the other person’s mouth, but there is enough to sustain life. If you are having to give a person CPR, then something is horribly wrong anyway and they need air very badly. The amount of oxygen in your breathe is enough when the alternative is death.

By: EMT2006

EMT2006 — Wed, 25 Nov 2009 23:39:05 +0000

When providing artificial respirations in this manner, you are not breathing pure carbon dioxide into their lungs. Exhaled air obtains roughly 15% oxygen (give or take a few percentage points depending on the person, environment, and circumstances). 15% oxygen is better than nothing.