This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'By which of the following anticoagulants used in estimating blood glucose, glycolysis is prevented \nSelect and explain. \nA. EDTA, B. Heparin, C. Sodium fluoride, D. Sodium citrate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Sodium fluoride is used as preservative for blood glucose by inhibiting the enzyme systems involved in glycolysis.Ref: DM Vasudevan, 7th edition, page no: 442', 'role': 'assistant'}]