What should be the depth of chest compressions during CPR for adults?

During CPR for adults, the depth of chest compressions should be at least 2 inches. This depth is critical because adequate compression depth ensures that sufficient blood is being circulated to vital organs, especially the brain and heart. The recommended depth allows for effective circulation during cardiac arrest situations, helping to maintain perfusion and improving the likelihood of a favorable outcome.

Chest compressions that are too shallow may not effectively circulate blood, which can compromise the chances of survival. Conversely, excessively deep compressions can increase the risk of injury to the ribs and internal organs without providing any additional benefit for circulation. Therefore, targeting a depth of at least 2 inches strikes a balance between effectiveness and safety, making it the recommended standard in Basic Life Support guidelines.