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Table 1 Serum and urine laboratory values before and after administration of desmopressin (DDAVP).

From: Hypernatremic dehydration, diabetes insipidus, and cerebral venous sinus thrombosis in a neonate: a case report

  Admission 12 Hours After Admission Day 3, Before DDAVP Day 3, 4 hrs After DDAVP
Serum:     
Na 173 mmol/L 157 mmol/L 163 mmol/L 154 mmol/L
CO2 20 mmol/L 22 mmol/L   24 mmol/L
BUN 143 mg/dL 80 mg/dL   19 mg/dL
Creat 1.6 mg/dL 0.9 mg/dL   0.6 mg/dL
osmolality    330 mosm/kg 324 mosm/kg
Urine:     
Output    6.5 cc/kg/hr 2.9 cc/kg/hr
Spec.grav.    1.007 1.012
Osmolality    248 mosm/kg 413 mosm/kg
Na    57 mmol/L 125 mmol/L