A fire is reported in the kitchen on the first floor of a three-floor community hospital, and the operator notifies the charge nurse on the third floor to start evacuation procedures. Which intervention should the charge nurse implement?

C Shut all doors to client rooms and tell everyone to stay in their rooms until the fire department arrives. B Instruct the nursing staff to evacuate ambulatory clients to the nearest fire exits. D Announce in a calm voice that all visitors should proceed immediately to the first floor via the service elevators. A Instruct unlicensed assistive personnel (UAPs) to transfer all non-ambulatory clients via wheelchairs.