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: Medicine
[{'content': 'Dehydration in ketoacidosis is best treated with- \nSelect and explain. \nA. Isolyte P, B. Isolyte M., C. Normal saline, D. Molar 1\\/6 lactate', 'role': 'user'}, {'content': "Answer: C \nExplanation: Most current guidelines our correction of the extracellular fluid deficit (dehydration) with isotonic saline (0.9 % sodium chloride) - 2-3 L of 0.9% saline over first 1-3 h (10-20 mL/kg per hour). Subsequently, when hemodynamic stability and adequate urine output are achieved (plasma sodium more than 155mmol/L), IV fluids should be switched to 0.45% saline depending on the calculated volume deficit (250-500 mL/h). Reference : page 2419 Harrison's Principles of Internal Medicine 19th edition", 'role': 'assistant'}]