How is diabetic kidney disease diagnosed?

Lab tests: Urine should be checked for protein once a year with a test for microscopic levels of Albumin (often called micro-albumin). Blood should be checked for BUN (blood urea nitrogen) to measure the levels of nitrogen-containing waste levels. Higher levels mean the kidney is not as efficient as it should be. A calculated value called egfr reflects the kidneys' ability to remove waste products.

Diabetic kidney: Definitive diagnosis is by kidney biopsy.