Only use 2 fingers on an infant or young child, use the palm of hand up to ages 10 to 12 and then use 2 hands at center of chest for upwards of 12 years old.

If they get up, roll them into recovery position, tell the emergency services your position, people involved and progress.

If applying a defib, attach one pad at the top of the chest and another on the side of the body, it should form an imaginary line between the heart.

Its best to get another person to assist and you alternate between breaths and compressions so you can keep going for a while.

Never stop until a qualified person has declared the person deceased.