What is the appropriate compression-to-ventilation ratio for adults during CPR?

The correct compression-to-ventilation ratio for adults during CPR is 30:2. This ratio has been established as the standard in resuscitation guidelines to optimize outcomes during cardiac arrest scenarios.

Conducting chest compressions is crucial as they help circulate oxygenated blood to vital organs while minimizing the interruption of compressions for ventilations. The 30:2 ratio signifies that for every 30 chest compressions, rescuers should deliver 2 rescue breaths to maintain adequate oxygenation. This approach balances the need for continuous blood flow with the requirement to provide ventilations, especially in a scenario where advanced care may be delayed.

The focus on this ratio reflects the understanding that high-quality compressions are a priority during CPR; therefore, minimizing pauses for ventilations enhances blood circulation more effectively. This methodology has been supported by extensive research and guideline updates from organizations like the American Heart Association.