Days Set Up
Monday - Saturday
Analytic Time

2 - 4 days

MiChart Code
Thallium, Urine
Soft Order Code

Test Updated:


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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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MLabs provides all the supplies necessary for the collection of specimens.

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Test Overview

Test Methodology

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Test Usage

Detecting toxic thallium exposure.

Reference Range

Blood: 0 - 1 ng/mL; Urine: Less than 10 mcg/specimen (24 hr collection).

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

Specimen Requirements

Collection Offsite

Blood: Collect blood in 7 mL royal blue top (metal free) tube with EDTA (K2). Refrigerate intact specimen. Heparinized specimens are unacceptable. Urine: 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 96 hours after administering gadolinium-containing contrast media.

24-hour Urine Jug
Normal Volume
Blood: 7 mL whole blood. Urine: 10 mL aliquot of 24 hour urine collection.
Minimum Volume
Blood: 0.3 mL whole blood. Urine: 1 mL aliquot of 24 hour urine collection.

Billing Information

CPT Code
83789 each specimen
Pro Fee Code

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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.