Final answer:
CPR stands for Cardiopulmonary Resuscitation, an emergency procedure used to manually pump blood when the heart stops, with proper technique and training being essential. Option A is the correct answer.
Step-by-step explanation:
The acronym CPR stands for Cardiopulmonary Resuscitation. It is an emergency life-saving procedure that is performed when the heart stops beating. By applying manual pressure to the sternum between the T4 and T9 vertebrae, one can manually compress the heart, pushing blood into the pulmonary and systemic circuits.
This is crucial to maintain blood flow, particularly to the brain, as neuronal death can occur within minutes without it. The goal is to provide 100 chest compressions per minute, which coincides with the beat of the song "Staying Alive" by the Bee Gees, and to do so at a depth of at least 5 cm.
Although emphasis is initially on chest compressions, artificial respiration may also be a part of CPR. It is important to note that proper training is essential for performing CPR to avoid causing further harm, such as broken ribs or damage to internal organs. Courses are available through various organizations like the American Red Cross, which include practicing the technique on a mannequin.