Selenium, RBC

Test Code

CPT Codes
84255<br /> ** This test is not available for New York patient testing. For New York patient testing, see test code 5507.**

Preferred Specimen
2 mL whole blood collected in an EDTA trace element collection system (royal blue-top) tube, or sodium heparin, trace-element free with green band (royal blue-top) tube

Minimum Volume
1 mL

Other Acceptable Specimens
Whole blood collected in: EDTA (lavender-top), or sodium heparin (green-top) tube

Carefully clean skin prior to venipuncture. Avoid worksite collection. Avoid hemolysis. Use the royal blue-topped "Trace-Metal" evacuated tube, which is available with EDTA, heparin, or with no additives.

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: Unacceptable
Refrigerated: 72 hours
Frozen: Unacceptable

Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

FDA Status
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.

Setup Schedule
Set up: Tues, Fri; Report available: 2-6 days

Reference Range
120-300 mcg/L

Clinical Significance
Selenium is a key component of a number of functional selenoproteins required for normal health. The best known of these are the antioxidant glutathione peroxidase enzymes. Selenium plays an important role in the control of thyroid hormone metabolism and is important for proper reproductive performance.

Performing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia, CA 91355

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.