if giving CPR orally, how does the CO2 from our lungs affect theirs if they need oxygen? Like, don’t they need oxygen in their lungs to go into their bloodstream to reach their brain? If were taking a deep breath of oxygen, our lungs immediately convert it to CO2, a waste product, however during oral CPR we instead breath that into the mouth and lungs of the recipient.
In: Biology
When you breathe, you do not use up all of the oxygen that was in the air, and breathe a notable percentage of it back out again.
When you have to perform CPR on someone not breathing, there is no easy way to provide fresh air with a normal oxygen content without additional tools. In this situation even though the reduced oxygen content in your breath is not ideal, it is still much better than no oxygen at all.
Remember that CPR is something you should only ever be doing in an emergency – when someone is non responsive and without heartbeat or breathing, and there are no other options available. You want to be calling in they professionals immediately, and as soon as a medic with the proper knowledge and equipment is there you want to be letting them take over with more advanced methods.
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