Which action would help facilitate communication during a mass casualty event in a hospital?

Activating communication equipment is essential during a mass casualty event in a hospital, as it ensures that all necessary channels for information sharing are operational. Effective communication is critical in managing a crisis, as it allows for timely updates on the situation, coordination of medical services, and dissemination of instructions to staff. When communication systems are activated, all personnel can receive real-time information, which aids in decision-making and enhances the overall response to the emergency.

In contrast, limiting personnel access to incident sites may hinder the flow of information and restrict personnel who might be crucial in resolving the situation. Reducing staff presence in the command center can lead to a lack of coordination and oversight, which is detrimental in a high-pressure scenario where clear leadership is needed. Keeping communication protocols vague could lead to confusion and misunderstanding, making it harder for staff to perform their roles effectively. Thus, the activation of communication equipment is a foundational step in facilitating clear and precise communication during a mass casualty incident.