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Cardiopulmonary resuscitation (CPR) is an emergency procedure consisting of chest compressions often combined with artificial ventilation, or mouth to mouth in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.
After defibrillation, chest compressions should be continued for two minutes before another rhythm check. [30] This is based on a compression rate of 100-120 compressions per minute, a compression depth of 5–6 centimeters into the chest, full chest recoil, and a ventilation rate of 10 breath ventilations per minute. [30]
The compression depth and force varies per patient. The chest displacement equals a 20% reduction in the anterior-posterior chest depth. The physiological duty cycle is 50%, and it runs in a 30:2, 15:2 or continuous compression mode, which is user-selectable, at a rate of 80 compressions-per-minute.
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 ...
The CPR mask is the preferred method of ventilating a patient when only one rescuer is available. Many feature 18 mm (0.71 in) inlets to support supplemental oxygen, which increases the oxygen being delivered from the approximate 17% available in the expired air of the rescuer to around 40-50%. [12]
Image credits: Imafish12 #5. ICU RN for 9 years here. We don’t “shock” asystole, aka a “flatline” heart rhythm. We do manual chest compressions and we give them epinephrine (adrenaline ...
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