2 year-old male had a recent adjustment in parenteral nutrition infusion cycle from 18 to 12 hours. There was no change in PN concentration. As a result, the glucose of infusion rate changed from 14 to 25 mg/kg/minute. Mother calls to complain that has symptoms of polydipsia and dehydration during daytime. During overnight PN, the patient is voiding more frequently. What is the most likely problem?
A. Hyponatremia
B. Diabetes insipidus
C. Nutrient deficiency
D. Hyperglycemia
E. Separation anxiety