What is the depth of chest compressions recommended for adults during CPR?

The recommended depth of chest compressions for adults during CPR is at least 2 inches (5 cm). This guideline is based on extensive research showing that deeper compressions have a greater chance of generating sufficient blood flow to vital organs during cardiac arrest.

Compressing the chest to this depth helps ensure that the heart is effectively compressed, creating the pressure needed to circulate blood, which is crucial for maintaining perfusion to the brain and other vital organs. Compressions that are deep enough help facilitate adequate oxygen delivery until advanced medical care can be provided.

Furthermore, this recommendation is aligned with guidelines from major health organizations, such as the American Heart Association, which emphasizes the importance of both the depth and the rate of compressions to maximize the effectiveness of CPR.