1 - 3 days
Test Updated:
Pb, Urine
LEAD, URINE
PBU24
PBU24-CONC
LEAD, URINE 24 HOUR
CONCENTRATION
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Test Overview
Inductively Coupled Plasma/Mass Spectrophotometry (ICP/MS)
Evaluate lead exposure or toxicity. The CDC states that whole blood lead is the best test for detection of lead exposure. Measurement of urine excretion rates before or after chelation therapy has been used as an indicator of lead exposure; however, blood lead analysis has the strongest correlation with toxicity.
> or = 18 years: <2 mcg/24 hour
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
Collect 24 hour urine in a clean, plastic container with no metal cap or glued insert and no preservative. Record 24 hour urine volume and collection dates/times on the request form. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.
Collect 24 hour urine in a clean, plastic container with no metal cap or glued insert and no preservative. Aliquot urine into a clean, plastic container with no metal cap or glued insert and refrigerate within 4 hours of completion of collection. Record 24 hour urine volume and collection dates/times on the request form. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.
