This test is used to monitor exposure to selenium; detect selenium deficiency
It is the preferred test to assess tissue stores.
For routine assessment of selenium deficiency or toxicity, the preferred test is Selenium, Urine.
To assess recent intake, the preferred test is Selenium, serum or plasma.
Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting
Do not spin
Do not spin
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen - 14 days
Freeze/thaw cycles - stable x3
Clotted specimen
Inductively-coupled plasma/mass spectrometry (ICP/MS)
100 – 340 ug/L