This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pediatrics
Causes of status epilepticus in a child 
Select and explain. 
A. Hypernatremia, B. Hyponatremia, C. Hyperkalemia, D. Hypokalemia
B: Hyponatremia
Answer: B: Hyponatremia 
Explanation: Approximately 25 % of childhood status epilepticus is idiopathic; 25% is associated with fever or meningoencephalitis; 50% of patients have a neurodevelopmental abnormality, head trauma, stroke, drug intoxication, subarachnoid bleed, pyridoxine deficiency, or metabolic abnormality ( hypoglycemia and hyponatremia ).Ref: Ghai, 8th edition; Pg no: 553