How can you help a casualty who has stopped breathing?

Explanation: Place your finger in the casualty's mouth to check that their airway is clear, then tilt their head back to ensure their airway is open. If required, you can then begin mouth-to-mouth resuscitation. Unless there is further danger, don't move the casualty.

Category: Incidents, accidents and emergencies (2021)

References: The Official DVSA Guide to Driving: Section 16, Highway Code: Page 132