What is the most important factor in high-quality CPR?

The most important factor in high-quality CPR is the depth of compressions. Effective chest compressions are critical for maintaining blood flow to the vital organs during cardiac arrest. Compressions should be both deep and at the proper rate to ensure that the heart is adequately pumped and perfusion is maintained.

Proper depth helps to create the necessary pressure to circulate blood effectively. It is recommended that compressions should be at least 2 inches deep in adults and performed at a rate of 100 to 120 compressions per minute. When the depth of compressions is adequate, it maximizes the chances of survival and recovery for the individual in cardiac arrest.

While other aspects like the rate of breaths, timing between compressions, and the speed of AED deployment are important components of CPR, ensuring adequate depth of compressions is paramount because it directly impacts the effectiveness of blood circulation during the resuscitation efforts.