Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient’s chest cavity. which description is the best description of the functions of chest compressions in cpr?

Compression-only (hands-only or cardiocerebral resuscitation) CPR is a technique that involves chest compressions without artificial ventilation.[6]:S643 It is recommended as the method of choice for the untrained rescuer or those who are not proficient because it is easier to perform and instructions are easier to give over a phone.[6]:S643[32]:8[36] In adults with out-of-hospital cardiac arrest, compression-only CPR by the lay public has a higher success rate than standard CPR.[36]

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