Specimen Requirements



Specimen Requirement

Patient preparation:
Patient should refrain from taking vitamins or mineral supplements at least 3 days before specimen collection. Avoid worksite collection.

Specimen collection:
Collect dark blue no additive or dark blue EDTA, within 1 hour centrifuge, transfer 2.0 mL serum/plasma to a screw top plastic transport tube, indicate sample type on tube and send refrigerated.


Inductively Coupled Plasma/Mass Spectrometry


Room temp: 8 hours, Refrigerated: 14 days, Frozen: 30 days

Reference Range

By Report *


3-7 days performed Tuesday, Friday

Clinical Use

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.

Test Code