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Test Code


CPT Code(s)


Patient Preparation

Patient should refrain from taking vitamins or mineral supplements at least three days prior to specimen collection.

Preferred Specimen(s)

2 mL serum collected in a no additive (royal blue-top) tube

Minimum Volume

0.7 mL

Alternative Specimen(s)

Plasma collected in an EDTA or sodium heparin (royal blue-top) tube

Collection Instructions

Carefully clean skin prior to venipuncture. Avoid worksite collection. Avoid hemolysis. Use the royal blue-top "Trace Metal" evacuated tube, which is available with EDTA, heparin or no additives. Do not use gel barrier tubes. Centrifuge serum or plasma specimens within 1 hour of collection. Immediately separate serum and plasma specimens from the cells into trace element collection vial(s).

Specimen Container

Plastic screw-cap vial, trace element

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 8 hours
Refrigerated: 14 days
Frozen: 30 days

Reject Criteria



Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Performing Laboratory

Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

Setup Schedule

Set up: Mon-Sat a.m.; Report available: Same day

Reference Range(s)

<2 Years 16-71 mcg/L
2-4 Years 40-103 mcg/L
4-16 Years 55-134 mcg/L
Adult 63-160 mcg/L

Clinical Significance

Selenium is an element of parental nutrition. Monitoring the selenium concentrations is useful in assessing parental nutrition, especially recent intake. Concentrations are also monitored in children with proprionic acidemia who require special diets with supplements.

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.