How deep should chest compressions be for adults during CPR?

The recommended depth for chest compressions during CPR for adults is 2 inches (5 cm). This depth is critical because it ensures that sufficient force is applied to the chest to create effective blood flow during the compressions. The goal is to compress the heart, allowing for adequate blood circulation to vital organs, especially the brain and heart itself, during cardiac arrest.

Compressions that are too shallow may not generate enough pressure to circulate blood effectively, while excessively deep compressions can result in injury to the sternum or ribcage that might hinder resuscitation efforts. Achieving the correct depth helps maximize the potential for survival while minimizing potential complications. Therefore, maintaining a depth of 2 inches strikes the appropriate balance needed for effective CPR in adults.