The albumin creatinine ratio (ACR) helps identify kidney disease, a complication that arises with diabetes. This test has the two components tested. Albumin is a protein that is present in high concentrations in the blood. Virtually no albumin is present in the urine when the kidneys are functioning normally. Albumin may be detected even in the very early stages of kidney disease, which makes it a very reliable test. Creatinine is normally released into urine at a constant rate and its level in the urine is an indication of the urine concentration. This allows creatinine to be measure correctly in this ACR test.
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