How can desmopressin increase the risk of hyponatraemia during intravenous dextrose monohydrate administration?

During administration of the B.Braun Medical 10% w/v Glucose Intravenous Infusion BP product, desmopressin, a vasopressin analogue, increases vasopressin effects, reducing renal electrolyte-free water excretion and increasing hospital-acquired hyponatraemia risk when intravenous fluid treatment is inappropriately balanced.