Which of the following electrolyte abnormalities can be seen after brain injury?
Hyponatremia
Hyperkalemia
Hypomagnesemia
All the above
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.
Fluid & Electrolyte