This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'A child presents with diarrhea and peripheral circulatory failure. The aerial pH is 7.0, PCO2 15 mmHg, and PO2 76 mm Hg. What will be the most appropriate therapy? \nSelect and explain. \nA. Sodium bicarbonate infusion, B. Bolus of Ringers lactate., C. Bolus of hydroxyethyl starch, D. 5% Dextrose infusion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Acidosis cause due to shock by Dehydration should be corrected by RL i/v fluid.', 'role': 'assistant'}]