What is the ideal depth for chest compressions on an adult?

The ideal depth for chest compressions on an adult is 2 inches. This depth is significant for effectively compressing the heart to facilitate blood flow during cardiopulmonary resuscitation (CPR). When compressions are performed at this depth, it allows for adequate compression of the thoracic cavity, which is crucial for creating enough pressure to circulate blood to vital organs.

Compressions that are too shallow may not effectively circulate blood, reducing the chances of survival in a cardiac arrest situation. Similarly, compressions that are deeper than 2 inches could potentially cause injury to the rib cage or organs within the chest cavity, which can lead to complications. Therefore, adhering to the recommended depth strikes a balance between effectiveness and safety during CPR.