Table 1 Serum and urinary laboratory data after admission and post-operation
| Â | Admission day | Admission 3rd day | Post OP 1st day | Post OP 5th day | Post OP 12th day | Three weeks after OP |
|---|---|---|---|---|---|---|
Serum sodium (mEq/L) | 109 | 121 | 128 | 131 | 134 | 135 |
Serum osmolality (mOsm/kg) | 223 | 250 | 264 | 276 | NA | NA |
Urine sodium (mEq/L) | 52.4 | 76.3 | 73.2 | NA | NA | NA |
Urine osmolality (mOsm/kg) | 325 | 356 | 337 | NA | NA | NA |
Plasma ADH level (pg/mL) | NA | 11.18 | NA | NA | NA | 5.9 |