{"id":"lead-urine","name":"Lead, Urine","shortName":"Urine Lead","aliases":["Lead, Random Urine","Lead, Urine (ug/L)","Urine Lead","Pb, Urine","Lead, Urine - per volume","Lead, Urine, Random","Lead, Urine (Random)","Lead Level, Urine"],"abbreviations":[],"loinc":[{"code":"5676-2","primary":true},{"code":"30931-0","primary":false},{"code":"14808-0","primary":false}],"specimen":"urine","units":[{"ucum":"ug/L","display":"µg/L"},{"ucum":"umol/L","display":"µmol/L"},{"ucum":"nmol/L","display":"nmol/L"}],"referenceRanges":[{"population":"Adults","low":null,"high":5,"unit":"ug/L","unitDisplay":"µg/L","note":"ARUP's interval per volume of urine (5.0 µg/L or lower). ARUP gives no age or sex split. Other labs publish different cutoffs. For comparison, US adults in NHANES 2017-2018 had a median of about 0.3 µg/L and a 95th percentile of about 1.2 µg/L, so this limit sits well above typical levels. Concentration depends on how dilute the urine is, so a creatinine-corrected result can be easier to compare. These values do not apply to urine collected after a chelating (provoking) drug.","sources":[{"title":"Lead, Urine (test 0025060)","url":"https://ltd.aruplab.com/Tests/Pub/0025060","publisher":"ARUP Laboratories"},{"title":"NHANES 2017-2018 Laboratory Data: Metals - Urine (UM_J)","url":"https://wwwn.cdc.gov/Nchs/Data/Nhanes/Public/2017/DataFiles/UM_J.htm","publisher":"CDC National Center for Health Statistics","year":2020},{"title":"ACMT Recommends Against Use of Post-Chelator Challenge Urinary Metal Testing","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC5711755/","publisher":"American College of Medical Toxicology (Journal of Medical Toxicology)","year":2017}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Measures lead in a single urine sample. It is less common than blood lead and is used mostly for follow-up or workplace monitoring.","url":"https://bloodtesttracker.com/markers/lead-urine","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}