This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
[{'content': 'On insulin administration, change expected in ECF is \nSelect and explain. \nA. Hypocalcemia, B. Hyponatremia, C. Hypoglycemia, D. Hyperkalemia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Insulin is a polypeptide hormone secreted by the islets of Langerhans and functioning in the regulation of the metabolism of carbohydrates and fats, especially the conversion of glucose to glycogen, which lowers the blood glucose level.Ref: Ganong&;s review of medical physiology;24th edition; page no-433', 'role': 'assistant'}]