What is the correct ratio of chest compressions to breaths when performing CPR?

The correct ratio of chest compressions to breaths when performing CPR is 30 to 2. This means that for every 30 chest compressions delivered, 2 rescue breaths should be administered. This ratio is part of the standard CPR guidelines established by organizations such as the American Heart Association.

The emphasis on a 30:2 ratio ensures that there is adequate circulation of blood to vital organs during cardiac arrest situations. High-quality chest compressions are crucial, as they help maintain blood flow to the brain and other organs until emergency medical help arrives. The two rescue breaths serve to provide oxygen to the lungs, which is essential when a person is not breathing.

The other ratios provided, such as 10:2, 15:2, and 20:2, do not align with the current CPR guidelines and thus would not be considered effective in optimizing the chances of survival in cardiac arrest scenarios. Keeping the compressions to breaths ratio at 30:2 allows responders to maintain a high frequency of compressions while still incorporating breaths for oxygenation.