Selenium
Label Mnemonic: SES
Epic Lab Code: LAB4036
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Plasma
Specimen Instructions:
Diet, medication, and nutritional supplements may introduce interfering substances. Patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non- essential over-the-counter medications (upon the advice of their physician).
Collection Medium:
Royal Blue K2 EDTA tube
Minimum:
Preferred Minimum: 2.0 mL plasma from Royal Blue K2 EDTA tube
Rejection Criteria:
Separator tubes. Specimens that are not separated from the red cells or clot within 6 hours.
Turn Around Time:
1-2 days upon receipt at reference laboratory.
Reference Range:
23 - 190 μg/L
Comments:
Note: Elevated results from noncertified trace element-free tubes may be due to contamination. Elevated concentrations of trace elements in serum should be confirmed with a second specimen collected in a trace element-free tube, such as royal blue sterile tube (no additive).
Methodology:
Quantitative Inductively Coupled Plasma-Mass Spectrometry
CPT Code:
84255