While attaching electrodes, the technician sees ventricular fibrillation appear on the screen and the patient becomes unresponsive. What is the first action?

Giải thích

Ventricular fibrillation in an unresponsive patient is a cardiac arrest, and survival depends on immediate activation of the emergency response and prompt CPR and defibrillation. Completing the test or charting first wastes critical minutes. Checking for artifact is appropriate only when the patient is awake and stable, which is not the case here.