All rescuers should perform chest compressions for all persons who are unresponsive and not breathing normally.
All rescuers, including health care professionals, should use unresponsiveness and absence of normal breathing to identify the need for resuscitation.
Immediately upon recognising that the casualty is unconscious and not breathing, compressions must be commenced.
Chest Compressions Only
If you are unable to or choose NOT to provide rescue breaths to the casualty you can provide compressions only. These compressions should be provided at a constant rate of approximately 100-120 per minute (approx. 2 per second).
Locating the site for Chest Compressions
Place the heel of the hand in the centre of the chest with the other hand on top. Avoid compression beyond the lower limit of the sternum. Compression applied too high is ineffective and if applied too low can cause regurgitation and/or damage to the internal organs.
Method of Compression
A casualty requiring chest compressions should be placed on their back on a firm surface before chest compressions, to optimize the effectiveness of compressions.
For an infant casualty (0-1 year), the 2 finger technique should be used.
Have your knees shoulder width apart with your arms straight and your shoulders vertically over the casualty, and press down on the chest.
The depth of compression is approximately 1/3 of the casualty’s chest depth. Chest compressions should be performed at a rate of 100-120 compressions per minute (almost 2 per second).
The pressure is exerted through the heel of the bottom hand and your body weight is the compressing force. You need to release the pressure on the chest after each compression without losing contact between your hands and the casualty’s chest.
If the casualty’s signs of life return, please them in the recovery position and monitor their vital signs closely.
WITHIN 3-4 MINUTES OF NOT BREATHING A CASUALTY WILL START TO SUFFER IRREVERSIBLE BRAIN DAMAGE.