MedDroidLab test guide
Urine Microalbumin (ACR) Test: normal range & what your result means
Written & medically reviewed by Dr. Sanjay Anbu, MBBS · Last reviewed
Medically reviewedThis test measures small amounts of albumin (a protein) in the urine, compared with creatinine (ACR). It is the earliest sign of kidney damage from diabetes or high blood pressure.
About the test
Why the urine microalbumin test is done
- Yearly kidney screening in diabetes
- High blood pressure or chronic kidney disease
- Following up protein found on a routine urine test
Reference range
Typical adult range
| Measure | Typical adult range |
|---|---|
| Normal | Below 30 mg/g |
| Moderately increased (microalbuminuria) | 30–300 mg/g |
| Severely increased | Above 300 mg/g |
| Unit note | Some labs report mg/mmol (30 mg/g ≈ 3 mg/mmol) |
Typical adult range; labs differ — use the range on your report. Ranges also vary with age, sex, pregnancy and the method used. Your doctor interprets the result alongside your symptoms and history.
Results
What a HIGH result can mean
- Early kidney damage from diabetes or high blood pressure
- Temporary rise from fever, infection, heavy exercise or very high sugar
- Needs repeating — usually 2 of 3 samples over 3–6 months confirm it
Results
What a LOW result can mean
- A normal result is good news — continue yearly checks if you have diabetes
Preparation
Before the test
- A first-morning urine sample is preferred
- Avoid heavy exercise the day before
- Do not test during a urinary infection or fever
Red flags
When to get urgent help
- Swelling of the face or legs with foamy urine
- Passing very little urine, or breathlessness with swelling — seek urgent care
Explore more
Related pages
References
Sources & further reading
Frequently asked questions
What does microalbumin in urine mean?
It means small amounts of protein are leaking from the kidneys — often an early sign of kidney stress in diabetes or high blood pressure.
Can microalbuminuria be reversed?
Often it can be slowed or reduced with good sugar and blood pressure control and medicines chosen by your doctor.
How often should people with diabetes do this test?
Usually at least once a year, or as your doctor advises.