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Regional Medical Lab
Test Directory


Lead, Urine (Random or 24hr)

Test Number: 3800005
Revision Date 05/20/2019
Test Name Methodology LOINC Code
Lead, Urine - per volume
Quantitative Inductively Coupled Plasma-Mass Spectrometry 5676-2 
Lead, Urine - per 24hr
Calculation 5677-0 
Creatinine, Urine - per volume
Quantitative Spectrophotometry 20624-3 
Creatinine, Urine - per 24hr
Calculation 2162-6 
Lead, Urine - Ratio to Creatinine
Calculation 13466-8 
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 8 mL (1 mL) Urine, 24-hour 24 Hour Urine Acid Washed Container Refrigerated
Alternate 1 8 mL (1 mL) Urine, Random Acid Washed, Trace Element Free Contatiner Refrigerated
Instructions Patient Prep: Collection of urine specimens from patients receiving iodinated or gadolinium-based contrast media should be avoided for a minimum of 72 hours post-exposure. Collection from patients with impaired kidney function should be avoided for a minimum of 14 days postcontrast media exposure.
Collect: 24-hour or random urine collection. Specimen must be collected in a plastic container and should be refrigerated during collection. Studies indicate that refrigeration of urine alone, during and after collection, preserves specimens adequately if tested within 14 days of collection.
Transfer an 8mL(1mL) aliquot of urine from a well-mixed collection to Trace Element-Free Transport Tubes.
Unacceptable Conditions: Urine collected within 72 hours after administration of a gadolinium (Gd) containing contrast media (may occur with MRI studies). Acid preserved urine. Specimens contaminated with blood or fecal material. Specimens transported in non-trace element-free transport tube (with the exception of the original device).
Stability: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 1 year
Testing Schedule Sun - Sat 
Expected TAT 1 - 5 days  
Notes Reference Lab: ARUP
Test Code: 25060
Click Here to view information on the ARUP website.
CPT Code(s) 83655, 82570
Lab Section Reference Lab