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Chest compression to breathing ratios is set at 30 to 2 in adults. CPR alone is unlikely to restart the heart. Its main purpose is to restore the partial flow of oxygenated blood to the brain and heart. The objective is to delay tissue death and to extend the brief window of opportunity for a successful resuscitation without permanent brain damage.
The ratio of compressions to ventilations is now recommended as 30:2 for adults, to produce higher coronary and cerebral perfusion pressures. Defibrillation is now administered as a single shock, each followed immediately by two minutes of CPR before rhythm is re-assessed (five cycles of CPR).
CPR involves a rescuer or bystander providing chest compressions to a patient in a supine position while also giving rescue breaths. The rescuer or bystander can also choose not to provide breaths and provide compression-only CPR. Depending on the age and circumstances of the patient, there can be variations in the compression to breath ratio ...
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ADULT and older CHILD CHILD 1 to 8 yrs BABY up to 1 yr CPR ratios for 1 person 30 compressions to 2 breaths 30 compressions to 2 breaths 30 compressions to 2 puffs CPR ratios for 2 persons 30 compressions to 2 breaths 30 compressions to 2 breaths 30 compressions to 2 puffs Chest pressure 2 hands 1-2 hands 2 fingers CPR compression rate
The LUCAS device delivers high-quality compressions at a continuous rate, while up to a third of manual compressions can be incorrect. [9] In 2013, a 68-year-old male made a complete recovery, including no intellectual or neurological deficits, after an out-of-hospital cardiac arrest after 59 minutes of mechanical compressions on a LUCAS device.