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Test Code LEAD24 Lead, 24 Hour, Urine

Performing Laboratory

Quest Nichols-Valencia


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