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': 'In a case of hyperophic pyloric stenosis, the metabolic disturbance is: March 2004 \nSelect and explain. \nA. Respiratory alkalosis, B. Metabolic acidosis, C. Metabolic alkalosis with paradoxical aciduria, D. Metabolic alkalosis with alkaline urine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Metabolic alkalosis with paradoxical aciduria', 'role': 'assistant'}]