This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'In a patient of total parenteral nutrition daily monitoring is done with \nSelect and explain. \nA. Body weight, B. Plasma protein, C. CBC, D. Plasma osmolality', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Fluid overload can be avoided by daily weighing of the patient. A weight change of >1 kg/day normally indicates fluid retention. PG NO.282 27th edition BAILEY', 'role': 'assistant'}]