Tuesday, June 22, 2010

Tuesday June 22, 2010

Q: Why it is recommended to perform head imaging (CT or MRI )in patients with severe hypernatremia OR what central complications may occur secondary to severe hypernatremia?

Answer: Head CT scan or MRI is suggested in all patients with severe hypernatremia as traction on dural bridging veins and sinuses caused by movement of water from the brain and brain shrinkage can lead to intracranial hemorrhage, most often in the subdural space. Also, hemoconcentration from total body water loss may lead to dural sinus thrombosis. On other note - imaging studies may reveal a central cause for hypernatremia.