Which of the following indicates a serious injury requiring a RED alert?

A head injury with amnesia is an important indicator of a serious injury requiring a RED alert because it signifies potential trauma to the brain. Amnesia, especially when associated with head trauma, can suggest significant neurological impairment or concussive injuries. This condition raises concerns for more severe outcomes such as intracranial hemorrhage, skull fractures, or other traumatic brain injuries that necessitate immediate medical intervention and monitoring.

Options involving soft tissue loss and multiple long bone fractures can also indicate significant trauma, but the critical nature of head injuries in this context, particularly when coupled with amnesia, elevates the urgency and seriousness of the condition. Uncomplicated fractures, while they may be painful and require treatment, typically do not have the same level of risk for immediate life-threatening complications as a head injury with cognitive changes.