Dr. Anita,
My dad is 79 years old and has been a diabetic for the last 30 years. Recently, in his blood sugar test, blood urea was 37 (limit 42) and creatinin was +1.0 (<1.2). Is this a positive sign for kidney function deterioration?.
He has been on diet most often, however, he tends to eat out at times. He also takes 12ml of insulin both mornings and evenings. As a result, though blood sugar and urine sugar seem to be under control, the blood urea level and creatinin levels seem high.