What is the compression to breath ratio for two-person CPR for an adult?

In two-person CPR for an adult, the compression to breath ratio is 30:2. This means that for every 30 chest compressions delivered, there should be 2 rescue breaths given. The 30:2 ratio is established to ensure a balance between maintaining blood circulation through compressions and providing the necessary oxygen through breaths. This ratio is particularly crucial when CPR is being performed by two rescuers, as one can focus on delivering effective compressions while the other can manage the rescue breaths, allowing for efficient and coordinated life-saving efforts. Using this ratio maximizes the chances of survival in cardiac arrest situations by ensuring adequate oxygenation and circulation are maintained until professional medical help arrives.