{"id":"urine-albumin-creatinine-ratio","name":"Urine Albumin/Creatinine Ratio (uACR)","shortName":"uACR","aliases":["Microalbumin/Creatinine Ratio","UACR","ACR","Albumin/Creatinine Ratio, Random Urine","Urine ACR","Albumin/Creatinine Ratio","Albumin/Creat Ratio","ALB/CREAT RATIO","Albumin-Creatinine Ratio, Urine","Albumin/Creatinine Ratio, Urine","Albumin:Creatinine Ratio, Random Urine","Alb/Creat Ratio","Urine Microalbumin/Creatinine Ratio","Urine Albumin to Creatinine Ratio","Urine Albumin-Creatinine Ratio","Albumin Creatinine Ratio, Urine","Microalbumin Creatinine Ratio, Random Urine","uACR"],"abbreviations":["uACR","UACR","ACR"],"loinc":[{"code":"9318-7","primary":true},{"code":"14959-1","primary":false},{"code":"32294-1","primary":false},{"code":"14585-4","primary":false}],"specimen":"urine","units":[{"ucum":"mg/g","display":"mg/g"},{"ucum":"mg/mmol","display":"mg/mmol"}],"referenceRanges":[{"population":"Adults","low":0,"high":30,"unit":"mg/g","unitDisplay":"mg/g","note":"The interval most labs print: ARUP 0 to 30 mg/g, Labcorp 0 to 29 mg/g, KDIGO category A1 below 30 mg/g (below 3 mg/mmol). The upper limit of 30 is shown because ARUP prints '0 to 30'; KDIGO category A2 starts at 30, so a result of exactly 30 sits on the line between the two. Mayo Clinic Laboratories prints stricter, sex-specific cutoffs (below 17 mg/g for males and below 25 mg/g for females). KDIGO notes that females have lower urine creatinine and therefore tend to have a higher ratio for the same albumin loss. Albumin assays are not standardized across labs, and results can differ by more than 40% between labs.","sources":[{"title":"Albumin-Creatinine Ratio, Urine (test 0050203)","url":"https://ltd.aruplab.com/Tests/Pub/0050203","publisher":"ARUP Laboratories"},{"title":"Albumin/Creatinine Ratio, Random Urine (test 140285)","url":"https://www.labcorp.com/tests/140285/albumin-creatinine-ratio-random-urine","publisher":"Labcorp"},{"title":"KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease","url":"https://kdigo.org/wp-content/uploads/2024/03/KDIGO-2024-CKD-Guideline.pdf","publisher":"Kidney International 105(4S):S117-S314","year":2024},{"title":"Urine Albumin-Creatinine Ratio (uACR)","url":"https://www.kidney.org/kidney-topics/urine-albumin-creatinine-ratio-uacr","publisher":"National Kidney Foundation"},{"title":"A_CR - Albumin/Creatinine Ratio","url":"https://www.mayocliniclabs.com/test-catalog/overview/606732","publisher":"Mayo Clinic Laboratories"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Compares albumin, a protein, with creatinine in a urine sample to show whether your kidneys are letting protein leak into urine.","url":"https://bloodtesttracker.com/markers/urine-albumin-creatinine-ratio","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}