what is the correct chest compression depth for an adult?

The correct chest compression depth for an adult during CPR is between 2 to 2.4 inches (5 to 6 centimeters). This depth is recommended to ensure effective blood flow during resuscitation while minimizing the risk of injury such as fractured ribs. Chest compressions should be performed at a rate of 100 to 120 compressions per minute with full chest recoil after each compression.