During mass casualty incidents, which factor is used to decide whether to transport to a trauma center or treat on scene?

• A. Weather conditions
• B. Time of day
• C. Injury severity
• D. Patient age

Answer: (C)

In mass casualty incidents, the primary driver for deciding transport destination is the severity of injuries. The field triage goal is to quickly identify those with life-threatening or time-critical injuries who will benefit most from definitive care at a trauma center. Severe injuries—such as airway compromise, major bleeding, penetrating trauma with instability, or significant traumatic brain injury—warrant rapid transport to a trauma center for advanced interventions. Patients with minor injuries can often be managed on scene or at closer facilities, preserving trauma-center resources for the most critically injured. Weather and time of day affect safety and logistics, but they do not determine the clinical need for transfer to a trauma center. Age can influence overall care considerations, but it does not override injury severity in the decision about destination during an MCI.