Which incident represents a trauma alert according to the criteria involving an auto versus pedestrian scenario?

In an auto versus pedestrian scenario, the criteria for a trauma alert are specifically focused on the extent of injuries and the mechanism of injury involved. The situation that clearly represents a trauma alert is when a pedestrian is thrown, run over, or impacted, especially when there are anatomical injuries present. These factors indicate significant trauma and a higher likelihood of serious injury, warranting immediate medical attention and transport to a trauma center.

This choice reflects the importance of both the mechanism of injury—such as being struck by a vehicle—and the resulting anatomical injuries, which serve as critical indicators for potential life-threatening conditions. Identifying and responding to such injuries swiftly can greatly influence outcomes in trauma cases. In contrast, other scenarios like minor injuries from a fall, lack of physical contact, or even just a pedestrian being thrown without sustained injuries do not meet the necessary criteria for a trauma alert due to the limited severity of the situation presented.