[Ditto]

If you’re only doing chest compressions, how is new oxygen being introduced into the body.

The article stated there is already a 8 minute reserve of oxygen in the blood. The important thing is to get the heart started and the blood moving. Once the heart restarts, they will breath on their own.

[HamiltonJay]

See post 8... emergency CPR is better than nothing, but don’t dillude yourself on its success rate.