Answer :
Final answer:
In 2 person CPR, rescuers should switch roles every 2 minutes to minimize fatigue and maintain effective chest compressions, vital for circulating blood when the heart stops.
Explanation:
When providing 2 person CPR, rescuers should change positions every 2 minutes, or approximately every five cycles of 30 compressions and two breaths if performing both chest compressions and mouth-to-mouth breathing. This rotation aims to reduce fatigue and maintain the efficacy of the compressions, which are critical to sustaining blood circulation in the absence of the heart's natural rhythm. Trained first responders can perform both chest compressions and artificial respiration, while bystanders are encouraged to focus on compression-only CPR to keep the blood flowing, especially to vital organs like the brain, where irreversible damage can occur within minutes without circulation.
