Urine Albumin–Creatinine Ratio (UACR)
Also known as: Microalbumin test, Urine albumin test, peshab mein protein ka test, microalbumin test
The amount of albumin (a protein) in urine compared with creatinine. Albumin leaking into urine is one of the earliest signs of kidney damage.
Why it's ordered
Yearly kidney screening for people with diabetes or high blood pressure, often before eGFR changes.
Preparation
A first-morning urine sample is best. Avoid heavy exercise the day before, and don't test during a fever, urine infection or menstrual period.
Typical adult values
| Normal (A1) | below 30 mg/g |
|---|---|
| Moderately increased (A2) | 30–300 mg/g |
| Severely increased (A3) | above 300 mg/g |
Ranges vary between labs and methods. Always use the range printed on your report.
If it's high
A raised UACR suggests kidney damage and higher heart risk. It should be confirmed: at least 2 of 3 samples over 3–6 months.
If it's low
Below 30 mg/g is normal.
Good to know
Some labs report mg/mmol instead: 3 mg/mmol ≈ 30 mg/g.
Common questions
Which urine sample is best for UACR?
A first-morning urine sample is best. Avoid heavy exercise the day before, and don't test during a fever, urine infection or menstrual period.
Is a UACR of 50 high?
Yes, 50 mg/g falls in the moderately increased group (A2), which is 30–300 mg/g. Always use the range printed on your report.
What does a raised UACR mean?
A raised UACR suggests kidney damage and higher heart risk. It should be confirmed: at least 2 of 3 samples over 3–6 months.
My lab reports UACR in mg/mmol. How does that compare?
Some labs report mg/mmol instead: 3 mg/mmol is about 30 mg/g. Always use the range printed on your report.