For adult CPR, what is the recommended compression-to-breath ratio when performed by one rescuer?

The recommended compression-to-breath ratio for adult CPR when performed by a single rescuer is 30 compressions to 2 breaths. This ratio is established to ensure effective circulation and ventilation during chest compressions and is designed to maximize the chances of restoring cardiac function in a victim of cardiac arrest.

In this approach, 30 compressions help maintain blood flow to vital organs while the accompanying 2 breaths provide necessary oxygen to the lungs. This combination is crucial for maintaining oxygenation and perfusion until professional medical help arrives or an automated external defibrillator (AED) can be used. This method stems from guidelines emphasizing effective and rapid CPR practices to enhance the likelihood of survival in such emergent situations.