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: Pediatrics
[{'content': 'GFR of stage 3 chronic kidney disease is \nSelect and explain. \nA. 40ml/min/1.73m2, B. 60ml/min/1.73m2, C. 25ml/min/1.73m2, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Stages of CKD :\n\n\n\nStage\nDescription\nGFR (ml/min/1.73m2)\n\n\n1\nKidney damage with normal or increased GFR\n>90\n\n\n2\nKidney damage with mild decrease in GFR\n60-89\n\n\n3\nModerate decrease in GFR\n30-59\n\n\n4\nsevere decrease in GFR\n5-29\n\n\n5\nKidney failure\xa0\n<15 or an dialysis', 'role': 'assistant'}]