You are on your own on the scene of an accident in which an injured person needs resuscitation. Should you proceed to performing resuscitation without a prior call for help?

As the only witness at the scene of an accident, the first thing you must do is call for help by dialling 112 or 999. This is the absolute priority because the sooner we call the professional emergency services, the greater the victim's chances of survival. Only after making the phone call and ensuring it is safe, should you begin resuscitation.