{"id":"mercury-urine-creatinine","name":"Mercury/Creatinine Ratio, Urine","shortName":"Urine Mercury/Creatinine","aliases":["Mercury/Creatinine, Urine","Mercury, Urine (ug/g creatinine)","Mercury, Urine Creatinine Corrected","Mercury ug/g Creatinine","Mercury, Random Urine, Creatinine Ratio","Mercury, Urine (per g Creatinine)","Mercury, Urine - ratio to CRT","Mercury/Creat Ratio, Random, U","Mercury Creatinine Ratio"],"abbreviations":["Hg/Cr"],"loinc":[{"code":"13465-0","primary":true},{"code":"22680-3","primary":false}],"specimen":"urine","units":[{"ucum":"ug/g","display":"µg/g creatinine"},{"ucum":"ug/mmol","display":"µg/mmol creatinine"}],"referenceRanges":[{"population":"18+","low":null,"high":2,"unit":"ug/g","unitDisplay":"µg/g creatinine","note":"Mayo Clinic Laboratories limit for adults (less than 2 µg/g creatinine). ARUP Laboratories lists a much higher upper limit of 20.0 µg/g creatinine, so labs differ about tenfold. Mayo has no reference values for people under 18.","sources":[{"title":"Mercury/Creatinine Ratio, Random, Urine (test HGUCR)","url":"https://www.testcatalog.org/show/HGUCR","publisher":"Mayo Clinic Laboratories (via the testcatalog.org mirror)"},{"title":"Mercury, Random Urine (test 2011481)","url":"https://ltd.aruplab.com/Tests/Pub/2011481","publisher":"ARUP Laboratories"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Mercury in a urine sample shown per gram of creatinine, so the result is not thrown off by how dilute your urine is.","url":"https://bloodtesttracker.com/markers/mercury-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."}