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|Method||Atomic Absorption Spectroscopy|
|Patient Preparation||Patient should refrain from taking vitamins or mineral supplements at least three days prior to specimen collection.|
|Collection Instructions||Be sure to gently mix the specimen promptly after phlebotomy.
Click here for detailed instructions for collecting samples for Trace Metals
|Container type||Navy blue top (EDTA) tube|
|Amount to Collect||4 mL blood|
|Sample type||EDTA plasma|
|Preferred volume||2 mL plasma|
|Min. Volume||0.7 mL plasma|
|Processing notes||Centrifuge the Navy Blue-EDTA tube within 1 hour of collection and pour off the plasma into a plastic trace element shipping container supplied by reference laboratory. Freeze plasma at -20C. Ship frozen. Order Quest # 5507|
|Turn around times||Test performed Tuesday and Friday. Turnaround time: 2-4 days.|
|Additional information||To convert µg/L to µmol/L (SI units) multiply by 0.0127.
Selenium is an essential trace element, and is commonly used in industry such as semiconductors, ceramics, glass, and rubber. It is important to monitor its level for health and for avoiding selenosis, especially when it is used as an element of parenteral nutrition. Concentrations are also monitored in children with propionic acidemia who require special diets with supplements.
|Last Updated||12/9/2013 2:18:37 PM|