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: Pathology
[{'content': 'Microalbuminuria is defined as protein level is in the range of: \nSelect and explain. \nA. 30-200 mg/day, B. 30-300 mg/day, C. 30-150 mg/day, D. 30-100 mg/day', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Microalbuminuria refers to urinary albumin excretion of 30-300 mg/day. It represents the earliest manifestation of diabetic nephropathy and identifies patients at risk for developing ove nephropathy as well as a progressive decline in renal function. Values greater than 300 are referred to as macroalbuminuria. Ref: Taal M.W. (2009). Chapter 22. Slowing the Progression of Chronic Kidney Disease. In E.V. Lerma, J.S. Berns, A.R. Nissenson (Eds), CURRENT Diagnosis & Treatment: Nephrology & Hypeension.', 'role': 'assistant'}]