Q: You're trying to resuscitate a casualty who isn't breathing. For how long should you continue compressions if they haven't started breathing again?
        
        
            
                Correct answer:
                
                    Until medical help arrives and takes over
                
             
        
            
                Explanation
            
            
                If you're trying to resuscitate someone, it's important that you don't give up on them. Make sure that someone has called the emergency services and continue trying to resuscitate the casualty until a medical professional takes over.