PLE-4794

A 6-year-old girl was admitted to the PICU due to multiple organ injuries secondary to a vehicular accident. On the 2nd hospital day, there was a note of sudden increase in urine output. Blood and urine tests were done, which showed a serum sodium of 115 mEq/L, urine sodium of 160 mEq/L, and a low serum ADH. What is the most likely diagnosis for this case?