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Vitamin E

Source Blood

 
Mnemonic VITE

 
Specimen Requirements

1 x 3.5 mL gold top SST tube

0.5 mL serum

Minimum Whole Blood Volumes for Microcollections

Minimum 10 hour fast. No alcohol, foods or nutritional supplements containing Vitamin E within 24 hours.

Protect from light by wrapping tubes in foil immediately after collection.  Specimens not protected from light will be rejected.

 

Specimen Handling

PSC & RRL:
Centrifuge and pour off serum.  Protect from light by using amber aliquot tube and lid, or wrap tubes in foil. Transport serum on ice to DSC. 

Extra-regional:
Centrifuge and pour off serum. Protect from light by using amber aliquot tube and lid, or wrap tubes in foil. Freeze serum before transporting to DSC.

DSC:
Freeze specimens upon receipt in lab; ensure frozen specimens do not thaw.

 

Additional Information Some foods containing vitamin E include vegetable oils, nuts, green leafy vegetables and fortified cereals.

 
Testing Location Analytical Toxicology
Testing Frequency Weekly

 
Alternate Name(s) alpha-Tocopherol

 
Reference Interval < 1 year:                 5 to 20 umol/L
1 - 6 years:             7 to 21 umol/L
7 - 12 years:           10 to 21 umol/L
≥ 13 years:              12 - 45 umol/L