When to stop cardiac resuscitation

"Cardiac arrest strikes 166,000 Americans each year. When a victim's heart stops beating, there are plenty of ways that bystanders and EMS crews can get it started again. But if those efforts fail and the patient doesn't respond, when should such efforts stop? This question leads to EMS teams and hospital ER teams spending countless hours and healthcare resources on patients who have no chance of surviving. Often times this happens at the expense of other patients who need an ambulance or have spent hours in ER waiting rooms. Now, researchers from the University of Michigan Health System, Emory University and the Henry Ford Health System have come up with simple guidelines to determine when efforts to revive an unresponsive cardiac arrest patient should be terminated" - JAMA