What signal indicates a role switch at the start of the CPR cycle in two-rescuer CPR?

What signal indicates a role switch at the start of the CPR cycle in two-rescuer CPR?

• A. Shout 'Time Out'
• B. Raise a hand
• C. Say 'Switch'
• D. Tap the partner's shoulder

Answer: (C)

Clear communication during a two-rescuer CPR transition is essential. When it’s time to swap roles, the rescuer currently performing compressions calls out the switch. Saying “Switch” provides a direct, audible cue that signals the other rescuer to take over immediately, helping to keep chest compressions continuous and coordinated with minimal interruption. A verbal cue is more reliable and unmistakable than a nonverbal gesture, which can be missed or misread in a noisy or stressful environment. Alternatives like signaling with a hand raise or tapping the shoulder may be overlooked; and shouting “Time Out” could imply a longer pause or create confusion about whether a pause is actually needed.

Clear communication during a two-rescuer CPR transition is essential. When it’s time to swap roles, the rescuer currently performing compressions calls out the switch. Saying “Switch” provides a direct, audible cue that signals the other rescuer to take over immediately, helping to keep chest compressions continuous and coordinated with minimal interruption. A verbal cue is more reliable and unmistakable than a nonverbal gesture, which can be missed or misread in a noisy or stressful environment. Alternatives like signaling with a hand raise or tapping the shoulder may be overlooked; and shouting “Time Out” could imply a longer pause or create confusion about whether a pause is actually needed.