Which statement best defines multisystem trauma?

• A. Injuries limited to a single body region
• B. Injury exclusively to soft tissue
• C. Injury predominantly to one organ
• D. Injury affecting multiple body systems

Answer: (D)

Multisystem trauma means injuries that involve more than one body system, not just a single region or organ. When someone has trauma across multiple systems—such as chest injuries affecting breathing and a head injury affecting the brain—there's a higher risk of instability and complex care needs, requiring rapid, comprehensive assessment and coordinated management. Injuries limited to one region, or confined to soft tissue, or predominantly to a single organ, do not meet multisystem trauma because they don’t involve multiple physiological systems. So the description that specifies injury affecting multiple body systems is the best definition.