Test Code LEAD24 Lead, 24 Hour, Urine
Performing Laboratory
Quest Diagnostics Nichols Institute, Chantilly, VA
Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Reference Values
< 80 mcg/L
Test Classification and CPT Coding
81050 - urine timed measurement
83655 - lead
Physician Office Specimen Requirements
Container/Tube: 24 Hour acid- washed or metal free urine container
Specimen: 7 mL(3 mL min) aliquot of a well-mixed 24 hour urine collected in an acid-washed or metal-free container.
Transport Temperature: Refrigerated
Stability: 5 Days Refrigerated
14 Days Frozen
Note: Starting and ending times of collection are required on request form for processing.
Day(s) and Time(s) Performed
Monday - Saturday
1 -2 Day TAT
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