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Urine albumin-creatinine ratio (uACR) | National Kidney Foundation

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The urine albumin-creatinine ratio (uACR) test measures the amount of two different substances in your urine - albumin (a protein) and creatinine. Healthy kidneys stop most of your albumin from getting through their filters and entering the urine. There should be very little or no albumin in your urine. If your kidneys are damaged, albumin can “leak” through their filters and into your urine. Having albumin in your urine (also known as albuminuria or proteinuria) can be a sign of kidney disease, even if your estimated glomerular filtration rate (eGFR) is above 60 or “normal”. Having albumin in your urine (albuminuria or proteinuria) can be a sign of kidney disease, even if your eGFR is above 60 or "normal". Types Quantitative urine albumin-creatinine ratio (uACR) This test measures the actual amount of albumin and creatinine in your urine sample and reports your results as a number. This test only requires a one-time urine sample, also known as a “spot” urine sample. This test is diffe

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