Unpredictable Nature of Tolvaptan in Treatment of Hypervolemic Hyponatremia: Case Review on Role of Vaptans

Table 1

Trend of pertinent clinical and laboratory data.

Day	Sodium (mEq/L)	Urine output (mL)	Tolvaptan (mg)
1	122	2250	—
2	123	2300	—
3	124	2300	—
4	123	2000	—
5	121	2200	—
6	126	7460	15
7	142	11950	15
8	167	10500	30
9	187	4500	30
10	181	3800	—