Mr. and Mrs. John Q. Public are sitting on the couch relaxing after a busy Christmas. All of a sudden Mr. Public clutches his chest and falls over onto the floor.
Mrs. Public calls 911 and starts CPR. 10 minutes later, EMS arrives with their portable electricity and shocks Mr. Public's VFib into asystole. Two rounds of drugs get him back. By the time he gets to the ER, he has a pulse of 80, a pressure of 120/50, and he's trying to breathe.
A diagnosis of MI with resulting cardiac arrest earns him a transfer to the Cardiac Hospital in the Big City, where they are much better equipped to handle mostly dead guys.
Mr. and Mrs. Public are in their early 50's. They have been married for 34 years. If he ever says the words, "Happy 35th Anniversary, honey," it will be because of his wife.
Cardiac arrest with a 10 minute down time and no CPR prior to EMS arrival results in a funeral 99.9% of the time. Cardiac arrest with a 10 minute down time and immediate bystander CPR gives him a fighting chance.
His vitals remained stable throughout the transport and into the cath lab.
Strong work, Mrs. Public.