Which term is used to describe an incident involving multiple casualties requiring a coordinated response?

• A. Mass Casualty
• B. Minor Incident
• C. Routine Medical
• D. Environmental Incident

Answer: (A)

The key idea is events where the number of injured people exceeds what local responders can handle with their usual resources, forcing a coordinated, multi-agency response and triage to use limited resources effectively. A mass casualty incident is defined by this strain on capabilities, not just by a high death toll—the focus is on organized response and mutual aid to treat many patients. This fits situations like a large traffic crash, a big natural disaster, or any event that overwhelms a single hospital’s capacity. In contrast, a minor incident involves few casualties that local teams can manage without expanded coordination, routine medical refers to everyday, non-emergency care, and an environmental incident centers on hazardous conditions or environmental effects rather than the scale of casualties and required coordinated response.