A nurse is caring for a child who has been diagnosed with a concussion. Which of the following findings should the nurse identify as causing this type of injury?

A. A deep wound causing external bleeding does not describe a concussion, which involves a brain injury due to trauma, not a superficial wound. B. A concussion is a mild traumatic brain injury caused by a blow to the head or trauma that causes the brain to twist or bounce inside the skull. This movement can lead to temporary neurological impairment. C. Bleeding between the skull and brain (epidural hematoma or subdural hematoma) is associated with more severe traumatic brain injuries, not a concussion. D. A ruptured artery leading to pooling of blood in the brain is more characteristic of an intracerebral hemorrhage or a severe head injury, not a concussion.