Days Set Up
Monday - Saturday
Analytic Time

1 - 3 days

MiChart Code
Heavy Metals, Blood (With Demographics)
Soft Order Code

Update Type: Reference range changed

Test Updated: 06/17/2020


Arsenic (As), Blood
Cadmium (Cd), Blood
Lead (Pb), Blood
Mercury (Hg), Blood
Metals, Blood

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

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

Test FAQ

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Test Overview

Test Methodology

Inductively Coupled Plasma/Mass Spectrometry

Test Usage

Diagnosis of acute poisoning or toxicity.

Reference Range

ARSENIC (As): <13 ng/mL; CADMIUM (Cd): <5 mcg/mL; LEAD (Pb): <5 mcg/dL. Critical Values: age <=15 years: > or = 20 mcg/dL; age >=16 years: > or = 70 mcg/dL; MERCURY (Hg): <10 mcg/mL.

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

Specimen Requirements

Collection Offsite

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.

Red Top Tube
Normal Volume
2.5 mL EDTA whole blood
Minimum Volume
1.0 mL EDTA whole blood

Billing Information

CPT Code
82175 Arsenic, 82300 Cadmium, 83655 Lead, 83825 Mercury
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.