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My kidney function has been at 30% for the past 2 years. I am 56, female & diabetic with a A1C of 7.1 They have always said my CKD is due to diabetes. My question is should I ask for a scan or kidney biopsy to make sure?

The diagnosis of diabetic kidney disease does not require a kidney biopsy under most circumstances.  If you have diabetes and if you have protein in your urine and if the rest of your physical and laboratory findings are consistent, most nephrologists and primary care physicians can make a diagnosis of diabetic kidney disease (diabetic nephropathy) based on clinical criteria without a kidney biopsy.  17 more words

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