Selenium

Message

SPIN DOWN WITHIN AN HOUR OF COLLECTION AND POUR OFF

Test Code

5507

Alias/See Also

LAB579

CPT Codes
84255

Preferred Specimen

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

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: EDTA (royal blue-top) tube 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

No additive (royal blue-top) tube in trace-element package

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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

10: 00 a. M. Tues, fri

Report Available

1-5 days

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

27027 Tourney Road

Valencia, CA 91355-5386

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.