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: Medicine
Inappropriate ADH secretion is characterised by the following except - 
Select and explain. 
A. Hypo-osmolar urine, B. Water intoxication, C. Expanded fluid volume, D. Hypomagnesemia
A: Hypo-osmolar urine
Answer: A: Hypo-osmolar urine 
Explanation: SIADH there is decrease in serum osmolality with inappropriate increase in urine osmolalitye.