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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.
This thinking was, however, not widely adopted, with surgical textbooks 50 years later still recommending leaving anaesthetised patients in a supine position. [ 4 ] First aid organisations were similarly slow in adopting the idea of the recovery position, with 1930s and 1940s first aid manuals from the British Red Cross and St John Ambulance ...
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The ear is placed over the person's mouth so breathing can be heard and felt while looking for rising chest or abdomen. The procedure should not take longer than 10 seconds. As in conscious patients stridor can be heard if there is a partial airway obstruction. The tongue may also partially obstruct the airway resulting in a snoring sound. If ...
The ABC system for CPR training was later adopted by the American Heart Association, which promulgated standards for CPR in 1973. As of 2010, the American Heart Association chose to focus CPR on reducing interruptions to compressions, and has changed the order in its guidelines to C irculation, A irway, B reathing (CAB).
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%.
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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 ...