Which of the following is NOT a symptom of a TBI?

Loss of appetite is not typically classified as a direct symptom of a traumatic brain injury (TBI). While TBI can lead to a range of physical and cognitive symptoms, the other options mentioned are more directly associated with the effects of head trauma.

Vomiting can occur as a result of increased intracranial pressure or a concussion, while seizures are also recognized as a potential consequence of brain injury, particularly if there is damage to the brain tissue. Additionally, unequal pupil size may indicate increased pressure within the skull or injury to the brain, linking it closely to TBI conditions.

Having loss of appetite, while it may be a secondary effect possibly influenced by pain, emotional response, or other indirect factors, is not an immediate or direct symptom of TBI itself. Thus, it stands apart from the more direct indicators of traumatic brain injury.