Which of the following is a sign of brain injury?

• A. Nausea, vomiting and combative behavior
• B. Rash
• C. Cough
• D. Abdominal pain

Answer: (A)

Signs of brain injury are changes in how the person feels and behaves after a head trauma. Nausea and vomiting can happen when the brain is irritated or during a concussion, and combative or unusually irritable behavior shows an altered mental status from brain injury. Together these are red flags that require prompt medical assessment. Rash, cough, and abdominal pain aren’t typical signs of brain injury and point to other problems. If brain injury is suspected, protect the airway, monitor responsiveness, minimize movement if a neck/spinal injury can’t be ruled out, and call emergency services.