The urine albumin-to-creatinine ratio (UACR) compares albumin to creatinine in a spot urine sample. It is the preferred screening test for early kidney damage, especially in patients with diabetes.
Category: Urinalysis
Also known as: urine acr, uacr, urine albumin creatinine ratio, urine albumin/creatinine ratio, urine microalbumin creatinine ratio
Reference range: 0–30 mg/g (Source: ABIM)
Standard unit: mg/g
High values may indicate
High UACR may indicate early kidney damage (microalbuminuria or macroalbuminuria), diabetic nephropathy, hypertensive kidney disease, or glomerulonephritis.
Low values may indicate
Low UACR is normal and indicates healthy kidney filtration without significant albumin leakage.