1 - Place the [?] of one hand on the [?] bone in the centre of the casualty’s chest - at about the level of the [?].

2 - Place the heel of your other hand on and link [?]. Lift fingers to ensure that no pressure is placed on the [?].

3 - Make sure that your arms are [?] and that your [?] are directly over your [?] so that you can press straight [?].

4 - Press down [?] by about then release the pressure while [?] your hands in place.

5 - Repeat the compressions at a rate of about per minute.

6 - If you need to give chest compressions to a [?] or infant it is important that these are given with [?] force. Use hand for a child. Use just fingers for an infant under the age of year and compress the chest by approximately [?] of its depth.

7 - When giving both rescue breaths and chest compressions they should be given at a ratio of rescue breaths to chest compressions.