"We saw the importance of high-quality CPR, and also early recognition and the importance of bystander CPR," Gino Mollica with the American Heart Association said.

Since July, Senate Bill 1137, has been in effect for all Arizona High Schools. This means students must be CPR certified in order to graduate.

Hamlin miraculously went from lying on the field to asking who won the game because he received prompt and high-quality CPR.

CPR training in schools should cover several key areas, including how to recognize an emergency and an emphasis on high-quality chest compressions and skills practice, the advisory states.

Off-duty cardiac technician gives CPR to customer in the checkout line Woman kept man alive at a gas station long enough for medics to arrive.