What is the compression-to-breath ratio when performing CPR on adults?

The compression-to-breath ratio during CPR for adults is set at 30 compressions for every 2 breaths. This combination is essential as it allows for a balance between maintaining blood circulation through chest compressions and providing oxygen through rescue breaths.

This ratio of 30:2 is effective because it maximizes the number of compressions delivered, which is critical for maintaining blood flow to vital organs during cardiac arrest. Each compression helps to artificially circulate blood, providing oxygen to the body's tissues until normal heart function can be restored. The two breaths given after each set of 30 compressions serve to provide some oxygen directly into the lungs, which is especially important in cases where the heart has stopped beating.

The ratio has been established by major resuscitation councils worldwide, and adhering to this standard is vital for achieving the best possible outcomes in an emergency situation. Understanding this ratio not only aids in providing effective CPR but also reinforces the rhythm and tempo necessary for performing compressions effectively.