How deep should chest compressions be when giving CPR to adults?

The recommended depth for chest compressions during CPR for adults is at least 2 inches. This depth is crucial because effective compressions need to be deep enough to create sufficient pressure to circulate blood throughout the body, particularly to vital organs like the brain and heart. Compressions should be performed at a rate of 100 to 120 compressions per minute and should allow full chest recoil between compressions.

Compressions that are too shallow may not effectively circulate blood, reducing the likelihood of survival and recovery for the individual experiencing cardiac arrest. This standard was established based on research indicating that deeper compressions significantly improve outcomes in cardiac arrest cases. Therefore, adhering to the guideline of at least 2 inches strikes a balance between effectiveness and safety when performing CPR on adults.