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Selenium, RBC
Test Code17133
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
Instructions
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: 7 days
Frozen: Unacceptable
Refrigerated: 7 days
Frozen: Unacceptable
Methodology
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