The Urine Albumin Test
What a urine albumin test measures and why it is the earliest sign of diabetic kidney disease.
Last updated: 2026-09-24
Albumin is the main protein in blood. A urine albumin test detects small leaks into urine — often the earliest sign of kidney damage.
Who needs it
Everyone with diabetes or high blood pressure should have a urine albumin test at least annually.
Frequently asked questions
What is a normal albumin creatinine ratio?
Below 30 mg/g is generally normal; your clinician interprets the value in context.