Albumin/Creatinine Ratio (Urine)
The Albumin/Creatinine Ratio (ACR) compares the amount of albumin to creatinine in a urine sample. It is the preferred screening test for early kidney damage.
Category: Kidney Function
Also known as: albumin creatinine ratio, acr, urine acr, uacr, albumin/creatinine ratio, urine albumin creatinine ratio, odnos albumin/kreatinin
Reference range: 0–30 mg/g (Source: ABIM)
Standard unit: mg/g
High values may indicate
High ACR may indicate kidney damage (nephropathy), commonly caused by diabetes, high blood pressure, or glomerulonephritis.
Low values may indicate
Low ACR values are normal and indicate that the kidneys are filtering properly without leaking significant protein.
Frequently asked questions
- What is a normal Albumin/Creatinine Ratio (Urine) level?
- A typical reference range for Albumin/Creatinine Ratio (Urine) is 0–30 mg/g (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is Albumin/Creatinine Ratio (Urine) measured in?
- Albumin/Creatinine Ratio (Urine) is most commonly reported in mg/g. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do Albumin/Creatinine Ratio (Urine) reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track Albumin/Creatinine Ratio (Urine) over time?
- Yes. Upload results from any lab and BloodId charts your Albumin/Creatinine Ratio (Urine) over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: MedlinePlus, U.S. National Library of Medicine
Analyze your Albumin/Creatinine Ratio (Urine) with AI
Chart your Albumin/Creatinine Ratio (Urine) over time
Track your Albumin/Creatinine Ratio (Urine) over time with BloodId