Cardiopulmonary resuscitation is the technique or procedure that combines chest compressions with rescue breathing. CPR is done to keep blood circulating to the brain to prevent brain damage and death until specialist treatment is available. CPR should be performed on a person who is both not responsive, not breathing at all or not breathing normally. CPR should commence with chest compressions followed by rescue breaths at the ratio of 30:2. This means 30 chest compressions followed by two rescue breaths as a continuous cycle. If the rescuer is unwilling or unable to do rescue breathing then chest compressions should be done at a rate of 100 per minute.
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