<span> Blood flow to the </span>heart<span> is blocked its known as a heart attack, this is due to circulatory problems. C</span>ardiac arrest<span> is when the heart stops completely and all of a sudden unlike a heart attack its known to be an e</span><span>lectrical problem. Someone having cardiac arrest and are unresponsive, would need to be shocked by </span><span>defibrillator, whereas if someone is having a hear attack you will need to put them into recovery position and do CPR.</span><span>