Yet it can maintain the 30 compression – 2 breath cycle indefinitely on a CPR Dummy. It’s an interesting idea; while defibrillators do exist, they don’t always get the heart going in time.

Keep giving 30 compressions followed by 2 breaths (if trained) until emergency help arrives or the person starts breathing.

The sooner a lay rescuer (bystander) starts cardiopulmonary resuscitation (CPR) on a person having a cardiac arrest at home ...