https://www.selleckchem.com/pr....oducts/sodium-oxamat
Urine osmolality distinguishes DI from osmotic diuresis. To improve reliability and comparability we propose the following definition for postoperative DI polyuria (urine production  300ml/hour for 3h) accompanied by a urine specific gravity (USG)  1.005, and at least one of the following symptoms excessive thirst, serum osmolality  300mosmol/kg, or serum sodium  145mmol/L. To prevent unnecessary treatment with desmopressin, we present an algorithm for the diagnosis and treatment of postoperative DI.  145 mmol/L.