This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
Long term parenteral nutrition most impoant complication ? 
Select and explain. 
A. Hypoglycemia, B. Hyperglycemia, C. Hypocalcemia, D. Hyponotremia
A: Hypoglycemia
Answer: A: Hypoglycemia 
Explanation: .Monitoring the patient by body weight, fluid balance, blood glucose, electrolytes, blood urea, LFT serum calcium, magnesium, phosphate should be done at regular intervals. A weight gain more than one kg/day signifies fluid overload.Biochemical complications of TPN includes 1. Electrolyte imbalance: Hyponatraemia, hypokalaemia, hypophosphataemia. 2. Hyperosmolarity. 3. Hyperglycaemia. - common. 4. Dehydration. 5. Altered immunological and reticuloendothelial function. 6. Azotaemia. ref:SRB&;s manual of surgery,ed 3,pg no 89