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HelpTest Code LEAD24 Lead, 24 Hour, Urine
Performing Laboratory
Quest Nichols-Valencia
Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
Reference Values
<8.0 µg/24-hours
Test Classification and CPT Coding
81050 - urine timed measurement
83655 - lead
Day(s) and Time(s) Performed
Tuesday, Thursday, Saturday
Physician Office Specimen Requirements
Container/Tube: 24 Hour acid- washed or metal free urine container
Specimen: Submit an entire 24-hour urine collection. or 7 mL aliquot of a well-mixed 24 hour urine collected in an acid-washed or metal-free container Acidify urine with acetic acid or nitric acid.
Transport Temperature: Refrigerated
Note: Starting and ending times of collection are required on request form for processing.
Used For
Elevated urinary lead concentration is indicative of chronic lead toxicity. Urinary lead concentrations may be used to monitor detoxification therapy.
Computer Interface Code
PDM # 5901466