Which of the following is the correct compression to ventilation ratio for adult CPR?

The correct compression to ventilation ratio for adult CPR is 30:2. This ratio indicates that for every 30 chest compressions delivered, 2 rescue breaths should be given. This approach is based on current guidelines, which emphasize the importance of high-quality chest compressions while ensuring that adequate ventilations are provided to maintain oxygen levels in the body.

Maintaining this ratio is crucial because it supports both the circulation of oxygenated blood and the removal of carbon dioxide from the body. The combination of compressions and ventilations optimally supports a cardiac arrest patient, improving their chance of survival until professional medical personnel can take over.

Understanding this ratio is fundamental for effective CPR practice, highlighting the importance of performing compressions at a sufficient rate and depth to ensure blood flow, while also integrating ventilations to restore breathing.