What is UACR?

UACR is the urine albumin-creatinine ratio (UACR). This test checks the ratio of albumin and creatinine in your urine. Albumin is a protein that helps transport important enzymes, hormones, and vitamins throughout your body, and generally cannot pass from the blood into urine when kidneys are healthy and filtering properly. Creatinine is a waste product that comes from the normal wear and tear of our muscles, and is passed out of the body in urine. UACR is a calculation that compares how much albumin is in the urine to how much creatinine is in the urine. If your UACR is 30 mg/g or above, this can be an early sign of kidney disease and may occur before you have any symptoms.