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
TURP was done in an old patient of BHP, after which he developed altered sensorium cause is 
Select and explain. 
A. Hypernatremia, B. Hyponatremia, C. Hypokalemia, D. Hyperkalemia
B: Hyponatremia
Answer: B: Hyponatremia 
Explanation: After dilution hyponatremia patient can devolop altered sensorium.