Days Set Up
Monday - Saturday
Analytic Time

1 - 3 days

MiChart Code
Lead, urine, 24 hour
Soft Order Code
MPBU

Test Updated:

Synonyms

Pb, Urine
LEAD, URINE
PBU24
PBU24-CONC
LEAD, URINE 24 HOUR
CONCENTRATION

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Test Overview

Test Methodology

Inductively Coupled Plasma/Mass Spectrophotometry (ICP/MS)

Test Usage

Evaluate lead exposure or toxicity. The CDC states that whole blood lead is the best test for detection of lead exposure. Measurement of urine excretion rates before or after chelation therapy has been used as an indicator of lead exposure; however, blood lead analysis has the strongest correlation with toxicity.

Reference Range

0 - 1 mcg/24 hour

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect 24 hour urine in a clean, plastic container with no metal cap or glued insert and no preservative. Aliquot urine into a clean, plastic container with no metal cap or glued insert and refrigerate within 4 hours of completion of collection. Record 24 hour urine volume and collection dates/times on the request form. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.

24-hour Urine Jug
Normal Volume
10 ml aliquot of 24 hour urine collection
Minimum Volume
2 ml aliquot of 24 hour urine collection

Billing Information

CPT Code
83655
Pro Fee Code
 
LOINC
 

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.