Selenium, Plasma (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
Test ordering requirements
Preferred specimen collection
- High concentrations of gadolinium and iodine are known to interfere with most trace element tests. If gadolinium or iodine containing contrast media have been administered, a specimen should not be collected for 48 hours
Specimen Information
Specimen types accepted
- Plasma
Specimen collection container
- Preferred collection container: Royal Blue (K2EDTA) 6.0 mL
Required volume
- Optimal volume: 6 mL full collection tube
- Pediatric volume: 0.6 mL plasma
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Transport and stability
- Centrifuge and separate plasma from red blood cells within 24 hours of collection
- Aliquot plasma into a polypropylene tube
Rejection criteria
- Specimens received where the proper collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Testing Information
Clinical interpretation
- Used to monitor exposure or detect deficiency
Performance
Days/times performed
Availability |
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Testing site |
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Maximum laboratory time
Results reporting
- 7 day turnaround time by testing laboratory
Last Updated: October 21, 2024