During CPR, what is a critical factor for effectiveness?

Maintaining proper technique and rhythm during CPR is essential for its effectiveness. Effective chest compressions should be done at a depth of about 2 inches for adults, at a rate of 100 to 120 compressions per minute. This ensures that blood is adequately circulated to vital organs, particularly the heart and brain, during cardiac arrest.

Proper technique includes allowing complete chest recoil between compressions, which helps to maximize blood flow back to the heart. Additionally, maintaining a consistent rhythm helps ensure that compressions are delivered at the correct rate, which is crucial for sustaining blood flow. In the context of CPR, the quality of compressions directly impacts the chances of survival for the individual receiving aid, making mastery of this technique paramount for anyone involved in emergency response.