What is the recommended compression-to-ventilation ratio when performing CPR on an adult?

The recommended compression-to-ventilation ratio when performing CPR on an adult is 30 compressions to 2 breaths. This ratio is established based on research and guidelines that emphasize the importance of high-quality chest compressions combined with effective ventilation.

During adult CPR, the ability to provide continuous chest compressions is crucial in maintaining blood circulation to vital organs until advanced medical help arrives. The 30:2 ratio allows for an optimal balance, where the rescuer can provide adequate compressions for blood circulation while also ensuring that the patient receives sufficient oxygen through rescue breaths. This method has been shown to increase the chances of successful resuscitation.

Other potential options, such as a higher or lower number of compressions per breath, do not align with current guidelines and could lead to less effective CPR, which may diminish the chances of survival for the patient experiencing a cardiac arrest.