What is the recommended depth of chest compressions for adults?

The recommended depth for chest compressions in adult CPR is at least 2 inches (5 cm). This depth is essential to ensure that compressions are effective in providing blood flow to vital organs, particularly the heart and brain, during cardiac arrest. The goal is to create enough pressure within the thoracic cavity to facilitate circulation, which is critical for maintaining perfusion until advanced medical help arrives.

Compressions that are too shallow may not generate adequate blood flow, diminishing the chances of survival and recovery for the patient. The recommendation aligns with guidelines from organizations such as the American Heart Association, which emphasizes that achieving the correct depth and allowing full chest recoil between compressions are key components of effective CPR.