Until help arrives: If you (or someone else) has called 911, continue CPR until the ambulance arrives. If you are somewhere that is inaccessible to an ambulance, continue CPR for 15-20 minutes, if the patient remains unresponsive, further CPR is incredibly unlikely that the patient can be revived.
Answered 10/3/2016
6.3k views
As long as you can: If it is a baby or young adult keep doing CPR until help arrives - in hospital we have done CPR for 30 min and revived patients.
Answered 12/7/2016
6.3k views
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