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: Biochemistry
[{'content': 'Which of the following is not a cause of metabolic alkalosis? \nSelect and explain. \nA. Vomiting, B. Fever, C. Renal failure, D. Both 2 & 3', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes of Respiratory Acidosis: (pH ↓, CO2 ↑)\n\nHypoventilation\nPulmonary edema\nCOPD\nAirway obstruction\nNeuromuscular diseases\n\nCauses of Metabolic Acidosis: (pH ↓, HCO3 ↓)\n\nDiabetic Ketoacidosis\nSalicylate overdose\nDiarrhoea\nShock\nSepsis\nRenal failure\n\nCauses of Respiratory Alkalosis: (pH ↑, CO2 ↓)\n\nHigh altitudes\nPregnancy\nHypoxia\nFever\n\nCauses of Metabolic Alkalosis: (pH ↑,\xa0HCO3 ↑)\n\nVomiting\nExcessive ingestion of alkali\nCortisone excess', 'role': 'assistant'}]