Test Overview
Test Methodology

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Test Usage

Detecting toxic thallium exposure.

Reference Range *

Age 0-17 years: not established; age >or= 18 years: <2 ng/mL.

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

Test Details
Days Set Up
Monday, Thursday
Analytic Time

2 - 6 days

Soft Order Code
TL-B
MiChart Code
Thallium, Serum
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo TLB (8149)
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Royal blue (trace element) and/or Metal-Free aliquot tubes are available from MLabs (800-862-7284). Collect blood in a royal blue top (trace element) tube with EDTA (K2). Immediately mix blood sample by inverting gently 8 times. Refrigerate and send intact whole blood specimen. Do not collect specimens for trace metal testing from patients who have received gadolinium-, iodine-, or barium-containing contrast material within the past 96 hours. These metal-based contrast agents are known to interfere with laboratory techniques commonly used for trace metals analysis.

    Contraindications
    High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.
    Normal Volume
    7 mL whole blood
    Minimum Volume
    0.3 mL whole blood
    Additional Information

    Thallium is a by-product of lead smelting and is found in some depilatories and rodenticides. Thallium is rapidly absorbed via ingestion, inhalation, skin contact, and through mucous membranes. Test sent to Mayo Medical Laboratories.

    Billing
    CPT Code
    83018
    Fee Code
    32112
    NY State Approved
    No