What is the correct ratio of compressions to ventilations for one-rescuer CPR?

In one-rescuer CPR, the correct ratio of compressions to ventilations is 30:2. This means that for every 30 chest compressions administered, the rescuer should provide 2 rescue breaths. This ratio is established to optimize the effectiveness of CPR for adults and is designed to maintain adequate blood circulation and oxygenation during a cardiac arrest.

The emphasis on chest compressions is particularly important, as they are crucial for keeping blood flowing to vital organs, especially the brain and heart. By providing compressions at a rate of 30 to every 2 ventilations, a rescuer can ensure that there is minimal interruption in compressions, leading to better outcomes for the victim.

This ratio was established based on research and guidelines from organizations such as the American Heart Association, which aim to provide clarity and uniformity in emergency response procedures.

The other ratios listed do not align with the current guidelines for adult CPR and would not be effective in ensuring adequate circulation and oxygenation during cardiac arrest situations.