Vitamin E


Sunquest Code:VITAE  
Epic Code:LAB130Epic Name:Vitamin E
Synonyms:Tocopherol, Serum
Methodology:High performance liquid chromatography
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-4 days.
Compliance:

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.



Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:0.6 mL
Container:Red or gold (gel)
[Alternate Containers: Green (lithium heparin, no gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel)]
Patient Preparation:Fast overnight (12 hours) and avoid alcohol for 1 day prior to collection.
Causes for Rejection:Whole blood or body fluids other than serum or plasma. Room temperature specimens.


Processing and Shipping

Specimen Processing:Within 1 hour of collection, centrifuge and aliquot 1 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:After separation from cells: 1 month refrigerated; 1 year frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:80521


Interpretive

Reference Range:

Vitamin E (Alpha-tocopherol)

mg/L

0-1 mo

1.0-3.5

2-5 mo

2.0-6.0

6 mo – 1 y

3.5-8.0

2-12 y

5.5-9.0

13 y and older

5.5-18.0

Vitamin E (Gamma tocopherol)

0-6.0

 

 

Use:Rule out vitamin E deficiency. To establish adequacy of dosage when high serum levels are desired in treatment protocols.


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