An adult casualty isn’t breathing. To maintain circulation, compressions should be given. What’s the correct depth to press for each compression?

Explanation: An adult casualty isn't breathing normally. To maintain circulation, place two hands on the centre of the chest. Then press down hard and fast - around 5-6 centimetres and about twice a second.

Category: Incidents, accidents and emergencies

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