Lead Occupational Exposure, Random, Urine
Use
Detects clinically significant lead exposure due to occupational exposure in random urine specimens. It is not a substitute for blood lead screening. Measurement of urinary lead concentration per gram of creatinine (especially before and after chelation therapy) can indicate significant exposure. Blood lead measurement remains the best clinical correlate for toxicity. Biological Exposure Index (BEI) reference: 4 mcg/g often associates with pallor, anemia, and other signs of lead toxicity.
Special Instructions
Only orderable as part of a profile (see PBUOE / Lead Occupational Exposure, Random, Urine and HMUOE / Heavy Metal Occupational Exposure, with Reflex, Random, Urine).
Limitations
This test was developed by Mayo Clinic in a manner consistent with CLIA requirements and has not been cleared or approved by the U.S. Food and Drug Administration.
New York Approved
Methodology
Mass Spectrometry (ICP-MS/MS)
Biomarkers
LOINC Codes
- 13466-8
- 13466-8
Result Turnaround Time
2-4 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
3 mL (optimal); minimum 1.5 mL
Minimum Volume
1.5 mL
Container
Clean plastic urine container/vial with no metal cap or glued insert
Collection Instructions
Collect a random urine specimen; see Metals Analysis Specimen Collection and Transport for complete instructions.
Patient Preparation
If gadolinium- or iodine-containing contrast media administered, delay collection for 96 hours.
Causes for Rejection
All specimens evaluated for suitability by Mayo Clinic Laboratories.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 28 days |
| Refrigerated | 28 days |
| Frozen | 28 days |