2007-05-20 14:24:13 · 12 answers · asked by Perfect 10 2 in Health ➔ Other - Health
We exhale a fraction of carbon dioxide but mostly it's left over oxygen. The air we breathe contains 21% oxygen and the rest is nitrogen. When we inhale, we don't use all the air we inhale. There is such a thing called "dead space" between our mouth and our lungs. Lots of oxygen is stored there as well. When we exhale, all this stored oxygen along with the left overs that we just inhaled are exhaled back out of our mouth. Our own breaths due quite fine during CPR. It's the compressions that are the most important. They also draw in air to the patient's lungs.
2007-05-20 14:29:10 · answer #1 · answered by Valerie, RN, BSN 3 · 9⤊ 1⤋
You exhale Carbon Dioxide in addition to oxygen and other gasses. Mouth to Mouth is effective because you are forcing air into the lungs. Oxygen is carried in the blood and the act of compressing the chest is moving the blood throughout the body and perfusing the tissues. We don't want people doing mouth to mouth due to the pathogens they can encounter. We now teach compression only CPR if you don't have a mask. Research has shown that there is enough Oxygen in the blood to perfuse the body. Yes we carry resucitators onboard the ambulance and our oxygen is 100%.
2016-04-01 12:26:10 · answer #2 · answered by Anonymous · 0⤊ 0⤋
What you exhale isn't completely carbon dioxide. Exhaled air contains 4.5-percent carbon dioxide and therefore, there is a a significant amount of oxygen in the exhaled air which helps in CPR.
2007-05-27 05:30:30 · answer #3 · answered by sillysilly 1 · 0⤊ 0⤋
The air around us is about 21-22% oxygen. The air we exhale is about 15-16% oxygen! That 15% is enough to help the victim.
When possible, we will use a Bag Valve Mask (BVM)- the big 'squeezy' breathing bags you've seen on TV. That offers the full 21% of oxygen.
For even more oxygen, we would use O2 tanks in some way.
2007-05-24 06:45:33 · answer #4 · answered by Madkins007 7 · 1⤊ 0⤋
most of the people above me have it right. we do exhale a small amount of oxygen. that little bit is better than what the unconscious person is doing. also, blowing air into their lungs gets their blood pumping through their lungs. when you do CPR, it's actually the chest compressions that do the most good. you do 2 breaths for every 30 compressions. the compressions do the work of the heart; they get blood out to the rest of the body.
2007-05-28 11:40:11 · answer #5 · answered by ukchick182001 2 · 0⤊ 0⤋
I think the idea is to get the lungs operating again. If they are still, there is no circulation at all, but filling the lungs is kind of like priming an engine. Also, I don't think we breathe out pure carbon dioxide, I imagine a fairly high per cent of what we breathe out is still oxygen, so the person is getting some oxygen. Interesting question.
2007-05-20 14:28:52 · answer #6 · answered by jxt299 7 · 1⤊ 3⤋
You will still blow a small amount of oxygen into their lungs and a small amount of oxygen is all they need to stay alive/oxygenate their body/tissues b/c they are not doing any activity or using very much oxygen at all.
2007-05-20 14:28:11 · answer #7 · answered by spongebobrogers 6 · 1⤊ 0⤋
The idea is to expand and contract their lungs. The human body will take in its own oxygen. A newborn baby does after being in fluid since conception.
2007-05-27 18:55:09 · answer #8 · answered by Joseph W 2 · 0⤊ 0⤋
You are blowing air into their lungs which is a combination of all the gases in the environment which is the same as you breathe.
2007-05-20 14:32:15 · answer #9 · answered by Irish 7 · 0⤊ 2⤋
What Do We Exhale
2016-09-28 05:44:02 · answer #10 · answered by ? 4 · 0⤊ 0⤋