{"id":"arsenic-urine-creatinine","name":"Arsenic/Creatinine Ratio, Urine","shortName":"Arsenic/creatinine","aliases":["Arsenic/Creatinine, Urine","Arsenic, Urine (ug/g creatinine)","Arsenic, Urine Creatinine Corrected","Arsenic ug/g Creatinine","Arsenic, Random Urine, Creatinine Ratio","Arsenic, Urine (per g Creatinine)","Arsenic/Creatinine Ratio, U","Arsenic/Creat w/Reflex, Random,U","Arsenic/Creatinine Ratio, Random, Urine","Arsenic, Urine, per Gram Creatinine"],"abbreviations":[],"loinc":[{"code":"13463-5","primary":true},{"code":"56652-1","primary":false}],"specimen":"urine","units":[{"ucum":"ug/g{creat}","display":"µg/g creatinine"},{"ucum":"ug/mmol{creat}","display":"µg/mmol creatinine"}],"referenceRanges":[{"population":"18+","low":null,"high":24,"unit":"ug/g{creat}","unitDisplay":"µg/g creatinine","note":"Mayo Clinic Laboratories prints <24 µg/g creatinine for adults 18 and older and has not set a range for people under 18. Dividing by creatinine corrects for how dilute the urine is. This is total arsenic, so it includes the mostly harmless arsenic in seafood and seaweed. Other labs can use different limits, and the range printed on your own report is the one that applies to your result.","sources":[{"title":"Arsenic/Creatinine, Ratio, with Reflex, Random, Urine (Mayo test ASUCR)","url":"https://www.testcatalog.org/show/ASUCR","publisher":"Mayo Clinic Laboratories (catalog mirrored at testcatalog.org)"},{"title":"Arsenic Toxicity: Clinical Assessment (Case Studies in Environmental Medicine)","url":"https://web.archive.org/web/20231205014355/https://atsdr.cdc.gov/csem/arsenic/clinical_assessment.html","publisher":"ATSDR (archived copy)"},{"title":"Recommendations for provoked challenge urine testing","url":"https://pubmed.ncbi.nlm.nih.gov/24113861/","publisher":"Journal of Medical Toxicology","year":2013}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Arsenic in a single urine sample, divided by creatinine to adjust for how dilute the urine is.","url":"https://bloodtesttracker.com/markers/arsenic-urine-creatinine","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}