What is the purpose of performing chest compressions during CPR?

The primary purpose of performing chest compressions during CPR is to circulate oxygenated blood to vital organs, especially the brain and heart. When a person has a cardiac arrest, their heart stops beating effectively, leading to a lack of blood flow. By applying chest compressions, you create artificial circulation, which helps maintain vital blood flow to organs and can prolong the chance of survival until professional medical help arrives.

This action is crucial because the brain can begin to suffer irreversible damage within minutes without adequate blood supply. Properly executed compressions also assist in maintaining some level of blood flow, improving the likelihood that the person will respond to further medical interventions, such as defibrillation. The effectiveness of CPR, particularly through chest compressions, is a key component in the chain of survival in such emergency situations.