What phrase is used to confirm safety before delivering a shock?

• A. I am ready
• B. Clear the area
• C. I'm clear, you're clear, everybody's clear
• D. Stand back

Answer: (C)

Before delivering a shock, the most important step is confirming that no one is in contact with the patient and that the area is safe for the defibrillator to use. The phrase “I’m clear, you’re clear, everybody’s clear” communicates this safety check to everyone nearby: it explicitly tells all team members and bystanders that no one is touching the patient and that the zone around the patient is free, so the shock can be delivered without risking injury to bystanders or responders.

Other options prompt people to move or indicate readiness, but they don’t explicitly confirm that everyone is clear of contact with the patient. That’s why this particular phrase is the best fit for signaling a safe defibrillation attempt.