What constitutes effective CPR in terms of rate and depth for adults?

Effective CPR for adults is characterized by a rate of 100-120 compressions per minute and a depth of at least 2 inches. This combination is vital for maintaining adequate blood circulation and ensuring that enough blood reaches vital organs during cardiac arrest. The recommended compression rate reflects extensive research demonstrating that this range maximizes the likelihood of successful resuscitation by delivering sufficient blood flow to the heart and brain.

The depth of at least 2 inches is necessary to create enough pressure within the thoracic cavity to effectively pump blood during the compression phase. Compressing too shallowly may not adequately circulate blood, while insufficient rates can lead to ineffective perfusion, reducing the chances of survival. Therefore, adhering to these parameters is essential for delivering effective CPR and improving outcomes for adults in cardiac arrest.