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In: Biology
Your lungs do not absorb the majority of the oxygen in the air you breathe. The air you inhale is about 21% oxygen and the air you exhale is about 16% oxygen. When performing CPR it would be preferable to have a bag valve, mask, and even better if you have oxygen to connect to it. But if you don’t have either administering rescue breaths, while performing high-quality compression will help keep the brain and organs perfused.
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