http://www.ProCPR.org

CPR is an attempt to make up for circulation in the heart that is not happening normally. CPR does not stop the dying process; it simply slows down biological cell death. The hope is that this procedure can buy time for EMS to arrive to try other methods of restoring proper circulation of oxygenated blood throughout the body to buy even more time so that the underlying reason why the person went into cardiac arrest in the first place can be explored. If CPR doesn't work, remember, you gave that person that best chance of survival.