This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Sodium and Potassium, Subject name: Pediatrics
Hypernatremic dehydration in children leads to irritability, restlessness, weakness, lethargy and fever. What is the most devastating consequence of hypernatremia in children? 
Select and explain. 
A. Seizures, B. Hyperglycemia, C. Brain hemorrhage, D. Hypocalcemia
C: Brain hemorrhage
Answer: C: Brain hemorrhage 
Explanation: Brain hemorrhage -most devastating consequence of acute & severe hypernatremia. Due to hypernatremia, extracellular osmolality increases | Osmotic shift of water from neurons- leading to shrinkage of brain | Tearing of meningeal vessels - Intracranial hemorrhage Seizures- sequelae to intracranial hemorrhage