Pt Admission Sodium (nmol/L) Discharge Sodium (nmol/L) Urine Osmolality (mOs/kg) Serum Osmolality (mOs/kg) Urine Sodium (mmol/L) Serum BUN (mg/dL) Serum Creatinine (mg/dL) Serum Potassium (mmol/L) TSH (uU/mL) Water Restriction Demecocycline SIADH Formal endocrinology consult 1 141 137 NA NA NA 16 0.84 4.8 5.25 NA NA No No 2 139 137 NA NA NA 12 0.74 3.7 1.75 NA NA No No 3 136 141 NA NA NA 20 0.73 4 0.46 NA NA No No 4 115 126 677 264 192 6 0.51 3.7 4.63 Yes Yes Yes No 5 126 137 557 256 64 5 0.84 4.1 4.63 Yes Yes Yes Yes 6 128 136 505 276 81 26 0.75 4 1.64 Yes No Yes No

Table 2: Serum and urine laboratory findings.