What is the compression to ventilation ratio for adult CPR?

The ratio of 30 compressions to 2 breaths is the established standard for adult CPR, as recommended by organizations such as the American Heart Association. This ratio is designed to maximize the effectiveness of chest compressions while providing adequate ventilation to support the victim's life.

In adult CPR, the priority is to perform high-quality chest compressions to maintain blood flow to vital organs, especially the brain and heart. The 30:2 ratio allows for a rapid return to compressions after delivering breaths, which is crucial since every second counts in an emergency situation. The sequence emphasizes that rescuers should focus on compressions while delivering breaths at strategic intervals to ensure the victim receives both oxygen and circulating blood effectively.

The other ratios presented are not the current recommendations for adult CPR. They either alter the emphasis on chest compressions or the number of breaths in a way that could diminish the efficacy of resuscitation efforts. The 30:2 ratio is widely taught and should be adhered to in adult CPR situations to maintain consistency and effectiveness in emergency responses.