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Urine albumin-to-creatinine ratio

Also called: UACR, Microalbumin test, Urine microalbumin

This urine test finds small amounts of protein (albumin) leaking from the kidneys, an early sign of kidney damage from diabetes or high blood pressure.

SampleA urine sample
Fasting?Usually not needed
ResultsUsually within 1 to 2 days
Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.

What the test is

It's recommended at least yearly for people with diabetes.

Why it's done

  • Diabetes or high blood pressure
  • Chronic kidney disease
  • Heart disease risk

Getting ready and what happens

  • A first-morning sample may be requested.
  • Avoid heavy exercise the day before.

How the test is done

  • You pee into a cup.

What the results mean

ResultTypical range for adults
NormalBelow 30 mg/g
Moderately increased30 to 300 mg/g
Severely increasedAbove 300 mg/g

Normal ranges vary from lab to lab and can differ by age, sex, and pregnancy. Your report lists your lab's own range next to each result. A result a little outside the range is often not a problem.

High

Two of three tests over 3 to 6 months above 30 mg/g suggest kidney damage. Blood pressure control and medicines like ACE inhibitors, ARBs, or SGLT2 inhibitors can protect the kidneys.

Questions to ask your provider

  • What do my results mean for me?
  • Do I need to repeat this test or have other tests?
  • Do I need a kidney-protecting medicine?
  • How often should I be tested?

Related conditions

Related medicines

Related tests

Sources

Last updated 2026-11-13.