Final answer:
A loss of consciousness following a head injury is compatible with a concussion, which is a mild form of brain injury.
Step-by-step explanation:
The nurse takes quick action, knowing that a loss of consciousness following a head injury is compatible with a
concussion. A concussion is a mild form of brain injury that occurs when the brain is jolted or shaken inside the skull. The temporary loss of consciousness in this case is a common symptom of a concussion.