Which action should a nurse supervisor take to prevent staff post-traumatic stress disorder during a mass casualty event?

Providing water and healthy snacks for energy throughout the event is a proactive approach to support staff during a mass casualty event. In high-stress situations, such as mass casualty incidents, healthcare professionals are often required to work extended hours under intense pressure. This can lead to physical and mental fatigue, increasing the risk of developing post-traumatic stress disorder (PTSD) or other stress-related issues.

By ensuring that the staff stays hydrated and has access to nutritious snacks, the nurse supervisor can help maintain their energy levels and cognitive function. Proper nutrition and hydration play a crucial role in stress management, enabling staff to better cope with the demands of their roles. This support may help mitigate feelings of overwhelm and burnout during and after the event, thereby reducing the likelihood of PTSD.

The other options, while beneficial in their own right, may not directly address immediate physical needs that can impact staff performance and mental well-being during the critical moments of a mass casualty event.