What would be a potential indicator for moderate/severe traumatic brain injury (TBI)?

Unconsciousness serves as a significant indicator of moderate to severe traumatic brain injury (TBI). The loss of consciousness suggests that there has been a profound impact on brain function, which is characteristic of more severe injuries. In cases of moderate to severe TBI, unconsciousness can result from widespread damage to brain structures that are responsible for consciousness, such as the brainstem or entire cerebral hemispheres.

While other symptoms, such as headaches, dizziness, or loss of balance, can occur with a TBI, these are often associated with milder forms or may present as part of the spectrum of symptoms for various levels of injury. Their presence alone does not indicate the severity of a brain injury to the same degree as unconsciousness does. Therefore, unconsciousness is a hallmark sign indicating the necessity for urgent medical assessment and intervention, as it often signifies the potential for critical brain damage or complications.