This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
T.U.R. (transurethral resection) syndrome is due to ? 
Select and explain. 
A. Hyponatremia, B. Hypokalemia, C. Hypovolaemia, D. Hypoxia
A: Hyponatremia
Answer: A: Hyponatremia 
Explanation: Ans. is 'a' i.e., Hyponatremia TUR syndrome and water intoxication syndrome are same. They are caused due to dilutional hyponatremia.