Final answer:
High-quality chest compressions are prioritized in CPR over artificial respiration because they maintain blood circulation to vital organs, especially the brain, which can suffer irreversible damage if deprived of oxygen for a few minutes. Continuous quality compressions are essential until professional help takes over or the patient recovers spontaneously.
Step-by-step explanation:
The quick application of a shock after compressions in CPR is crucial because during a severe electrical shock, the muscles, including the chest muscles and diaphragm, may contract involuntarily and stop breathing. The compression of the chest in CPR aims to manually circulate blood, which is vital for brain function, as the brain can suffer irreversible damage within minutes of stopped blood flow. Current CPR guidelines prioritize high-quality compressions over artificial respiration. If the heart stops beating, chest compressions should continue until the patient either regains spontaneous contraction or is declared dead by a healthcare professional. When CPR is promptly and effectively administered after rescuing someone, such as from drowning, the chances of full recovery are significantly increased.