How deep should chest compressions be for adults?

Chest compressions for adults during cardiopulmonary resuscitation (CPR) should be performed at a depth of at least 2 inches (approximately 5 centimeters). This depth is important because it allows for adequate circulation to the vital organs, maximizing the chance of resuscitation. Compressing to the recommended depth helps create enough pressure within the thoracic cavity to adequately pump blood to the heart and brain, which are critical in an emergency situation.

Additionally, compressions should be delivered at a rate of 100 to 120 compressions per minute, and it's essential to allow full chest recoil between compressions to promote venous return. The emphasis on the depth of 2 inches is based on research and guidelines established by organizations such as the American Heart Association, which aim to optimize CPR techniques and improve survival outcomes for individuals experiencing cardiac arrest.