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': 'A 70 kg man presents with pyloric strenosis resulting from peptic ulcer disease is admitted for resuscitation after one week of prolonged vomiting. The metabolic disturbance is associated with \nSelect and explain. \nA. Hypokalemic hyperchloremic metabolic acidosis, B. Hypokalemic hypochloremic metabolic acidosis, C. Hypokalemic hyperchloremic metabolic alkalosis, D. Hypokalemic hypochloremic metabolic alkalosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Repetitive vomiting leads to hypochloremic,hypokalemic metabolic alkalosis. the urine is initially alkaline but later becomes acidic ( paradoxical aciduria)', 'role': 'assistant'}]