This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid & Electrolyte, Subject name: Surgery
[{'content': 'Which of the following electrolyte abnormalities can be seen after brain injury? \nSelect and explain. \nA. Hyponatremia, B. Hyperkalemia, C. Hypomagnesemia, D. All the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., All the above Electrolyte abnormalities seen in brain injury* Electrolyte abnormalities occur in 60% of the patients with head injury.* Hyponatremia is the most common electrolyte abnormality seen and is often secondary to SIADH.* Other Electrolyte disorders including hypernatremia, hypokalemia, hyperkalemia, hypophosphatemia and hypomagnesemia are also common after acquired brain injury.", 'role': 'assistant'}]