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: Medicine
[{'content': '55 year old male patient who is a know case of chronic kidney disease present to emergency with vomiting and Is diagnosed with uremic acidosis. His ABG analysis report is\npH= 7.42\npCO2= 40\nHCO3= 25\nNa+= 140 mmol/L\nK+= 3 mmol/L\nCl-= 95 mmol/L \nSelect and explain. \nA. Respiratory acidosis, B. Respiratory Alkalosis, C. High Anion Gap metabolic acidosis + metabolic alkalosis, D. High Anion Gap metabolic acidosis + Respiratory Alkalosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: PH\xa0is higher, but CO2\xa0and HCO3\xa0look normal. So look at Anion gap = 20 .\nBut difference in HCO3 = 0 \xa0so is a case of High Anion Gap metabolic acidosis + metabolic alkalosis.', 'role': 'assistant'}]