Test Overview

Test Methodology

Dynamic Reaction Cell- Inductively Coupled Plasma/Mass Spectrometry (DRC-ICP-MS)

Test Usage

Monitoring selenium replacement therapy.

Reference Range*

Age 0-2 months: 45 - 90 ng/mL; age 3-6 months: 50 - 120 ng/mL; age 7-9 months:
60 - 120 ng/mL; age 10-12 months: 70 - 130 ng/mL; age >1 year: 70 - 150 ng/mL.

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

Test Details

Days Test Performed

Monday - Saturday

Analytic Time

2 - 4 days

Soft Order Code


MiChart Code

Selenium, Serum



Selenium, Serum

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Laboratory Reference

Mayo SES (9765)

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Specimen Requirements


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.


Trace Element Tube - Serum

Normal Volume

0.8 mL serum

Minimum Volume

0.2 mL serum

Additional Information

Sent to Mayo Medical Laboratories.

Billing Information

Fee Codes

CPT Code




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