This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pediatrics
[{'content': 'Best method of estimation of amount of proteinuria in a 2 year child with nephrotic syndrome is \nSelect and explain. \nA. Dipstick testing, B. 24 hr urine protein, C. Spot urine sample for protein/creatinine ratio, D. Microalbuminuria', 'role': 'user'}, {'content': 'Answer: C \nExplanation: c. Spot urine sample for protein/creatinine ratio(Ref: Nelson 20/e 2518)Though 24 hr urine for protein and creatinine, is more accurate, but due to difficulty in collecting 24 hour urinary sample in children, Spot urine sample for protein/creatinine ratio is preferred.', 'role': 'assistant'}]