Biomarker Reference · Pb
Lead (Urine) (Pb) is a clinical biomarker used in heavy-metals-toxicology assessment. Lead is a non-essential metal that accumulates in bone and soft tissues. It is measured in 2 laboratory tests on BiomarkersLabs.com.
Lead is a non-essential metal that accumulates in bone and soft tissues. Urinary lead reflects recent exposure and is a less sensitive marker of body burden than blood lead, which integrates circulating and recent bone-release lead. Urine lead may be useful in monitoring chelation therapy or when blood sampling is impractical, though blood lead remains the standard screening tool.
Elevated urinary lead suggests recent or ongoing exposure from occupational sources (battery manufacturing, construction, lead paint removal), contaminated water, pottery glazes, or folk remedies. Chronic lead toxicity manifests as anaemia, peripheral neuropathy, cognitive effects, and renal impairment. Children are especially vulnerable. Chelation decisions are guided by blood lead, not urine lead alone.
Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.
2 tests on BiomarkersLabs.com include this biomarker.
Lead (Urine) reference range in this test: <2 µg/g creatinine (adults without occupational exposure)
Lead (Urine) reference range in this test: Reported against reference intervals, creatinine-corrected # REVIEWER FLAG: Confirm Doctor's Data range. Note blood lead, not urine, is the standard clinical measure of lead exposure.
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