Lead, Urine

Also known as: Pb, Urine

Clinical Use

Order Test

Use

Monitor exposure to lead or lead chelation therapy

Special Instructions

Not provided.

Limitations

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration. Factors such as gastrointestinal disturbance, anemia, and chronic exposure may influence test results. Environmental and occupational exposure limits are noted for reference.

Test Details

Methodology

Mass Spectrometry

Biomarkers

Creatinine

Analyte

Creatinine, Urine

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

Lead

Analyte

Lead, Urine

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

Lead:Creatinine Ratio

Analyte

Lead:Creatinine Ratio

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

LOINC Codes

Order Codes

20625-0 - Lead 24h Ur-mCnc

Result Codes

20625-0 - Lead 24h Ur-mCnc
2161-8 - Creat Ur-mCnc
13466-8 - Lead/Creat Ur
5677-0 - Lead 24h Ur-mRate

Result Turnaround Time

3-4 days

Specimen

Urine

Volume

5 mL

Minimum Volume

2.5 mL

Container

Plastic urine container, no preservative

Collection Instructions

Sampling time is not critical for industrial exposure monitoring. If a 24-hour collection, instruct the patient to collect all urine including the final specimen voided at the end of the 24-hour period. Collect without preservatives.