Which term describes injuries to more than one body system?

• A. Polytrauma
• B. Mono-trauma
• C. Multisystem injury
• D. Isolated trauma

Answer: (A)

Recognizing how injuries across multiple body regions are described. When injuries involve more than one body system, the term polytrauma is used. It signals not just several injuries, but a combined physiologic burden that often requires coordinated, rapid care across systems (airway and breathing, circulation, bleeding control, and transport decisions). Mono-trauma and isolated trauma refer to injuries confined to a single body region or system, so they don’t capture the multi-system involvement. Multisystem injury is a similar idea, but polytrauma is the standard term used in field and military medicine to denote complex, multi-system injury with potential instability.