During 2 rescuer adult CPR, rescuers should switch duties after how many cycles?

During two-rescuer adult CPR, it is recommended that rescuers switch roles after performing about 5 cycles of CPR, which corresponds to approximately 2 minutes of continuous chest compressions. This is important to prevent fatigue, ensuring that rescuers can maintain high-quality compressions at the appropriate rate and depth. Fatigue can lead to decreased effectiveness in compressions, which are crucial for maintaining blood flow during cardiac arrest. By switching every 5 cycles, the rescuers can maintain the effectiveness and efficiency of the lifesaving techniques being employed. This interval allows both rescuers to stay engaged and alert, ultimately improving the chances of a positive outcome for the patient.