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

The compression-to-breath ratio for adult CPR is 30:2. This means that for every 30 chest compressions performed, the rescuer should provide 2 rescue breaths. This ratio is established to ensure optimal blood flow and oxygenation to vital organs, particularly during cardiac arrest, where the heart is unable to pump blood effectively.

The 30:2 ratio allows for sufficient compressions, which are crucial for maintaining blood circulation, followed by breaths that provide oxygen to the lungs and thus the bloodstream. This approach is based on research and guidelines from the American Heart Association, emphasizing that high-quality chest compressions, even without breaths in certain cases, provide a critical component for survival.

Using this ratio makes it easier for rescuers to remember and perform CPR effectively, ensuring that victims receive the best possible chance of survival until professional help arrives.