According to guidelines introduced by he American Heart Association, in most cases where an adult suffers cardiac arrest, bystanders can forgo mouth-to-mouth breathing and perform "hands-only" CPR.
Recent studies have shown that chest compressions alone are as effective as standard CPR in sustaining heart attack victims until emergceny help arrives.
The AHA hopes this will make it easier for bystanders to help. You should follow two simple steps.
1) Call 911
2) Push Hard and Fast with a minimum of 100 chest compressions in a minute.
If you haven't taken a CPR class or if you want to learn more you can do so in the comfort of your home in about 20 minutes. There are both adult and infant CPR kits available for about 30 dollars.
Order a Kit: http://handsonlycpr.eisenberginc.com/