A casualty has stopped breathing and you've started giving them chest compressions. How long should you continue trying to resuscitate them? A casualty has stopped breathing and you've started giving them chest compressions. How long should you continue trying to resuscitate them?

• Possible answers:

   
• A. Until someone has called the emergency services
• B. Until they can breathe unaided or until medical help arrives
• C. Until you feel there's no hope of them recovering
• D. Until the colour of their skin becomes pink