The aim of CPR is to preserve life by maintaining an adequate supply of oxygen to the heart and brain. Effective CPR prolongs a person's chance of survival until either a defibrillator arrives and can be used to shock the heart back into its normal rhythm or advanced professional life support is available. This how-to video shows you how to use a portable CPR Ezy when someone you know is suffering from a heart attack. This medical device helps you perform CPR on a victim in a constant rhythm.
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