Correct!

An adult casualty is not breathing. To maintain circulation, cardiopulmonary resuscitation (CPR) should be given. What's the correct depth to press down on their chest?

1 to 2 centimetres
5 to 6 centimetres
Correct answer
10 to 15 centimetres
15 to 20 centimetres

DVSA theory test explanation

An adult casualty is not breathing normally. To maintain circulation, place 2 hands on the centre of the chest. Then press down hard and fast - around 5 to 6 centimetres and about twice a second.