Which of the following is NOT a sign of a head injury?

A high fever is not typically associated with a head injury. Signs of head injuries are generally related to trauma to the head that affects the nervous system's functioning and can include symptoms such as unequal pupils, which may indicate pressure or injury to the brain. Intense headaches are also common after a head injury due to various factors, including potential bleeding or swelling in the skull. A soft area on the scalp, known as a hematoma, can be a direct result of impact and is another indicator of head trauma. Therefore, while the other options reflect common signs of head injuries, a high fever is more indicative of systemic infections or conditions unrelated to head trauma.