The Urine Microalbumin-Creatinine Ratio (UACR) is a test that measures the amount of albumin (a type of protein) in the urine, adjusted for creatinine levels. This ratio helps assess kidney function, particularly in detecting early signs of kidney damage, especially in individuals with diabetes or hypertension. Elevated UACR levels can indicate kidney disease or kidney damage, while normal levels suggest healthy kidney function. This test is commonly used to monitor individuals at risk for diabetic nephropathy or other forms of kidney impairment.