Selenium

Test Code
5507

CPT Codes
84255

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

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

Minimum Volume
0.7 mL

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

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).

Transport 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 (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis

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: Mon-Sat; Report available: Same day

Reference Range
<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 parenteral nutrition. Monitoring the Selenium concentration is useful in assessing parenteral nutrition, especially recent intake. Concentrations are also monitored in children with propionic acidemia who require special diets with supplements.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



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.