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
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.