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
Badly.
Exhaled air has barely enough oxygen to maintain consciousness at the best of times, and not enough to regain consciousness if your blood oxygen levels have fallen too low to stay conscious, and the compressions are not able to restart a heart – they’re a sub-optimal way to keep blood moving around.
It’s basically an ultra low grade life support system that will slow the dying process.
It doesn’t work like in the movies where the victim coughs and lurches awake. Instead, with a **lot** of luck, an ambulance will hopefully arrive with oxygen and drugs before the person is dead and can keep them from dying long enough to hook them up to a hospital life support system. If you’re not right outside a hospital the chances of this are somewhere in the region of 5%.
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