Vitamin E (Tocopherol)
Also known as: Tocopherol
Use
Measurement of Vitamin E (tocopherols) in serum can aid evaluation of nutritional status, particularly to assess for Vitamin E deficiency in patients with malabsorption, chronic cholestasis, hemolytic disease in premature infants, long‑term parenteral nutrition, or neuromuscular disease. It may also be used more broadly in micronutrient panels assessing antioxidant status.
Special Instructions
Not provided.
Limitations
Interference from hemolysis, lipemia, or improper specimen handling (e.g., exposure to light, improper separation or use of plasma) can affect accuracy. Serum must be separated from cells within appropriate timeframe; use of plasma or unprotected specimens may yield invalid results.
Methodology
Other
Biomarkers
Alpha-Tocopherol
AnalyteBeta-Gamma-Tocopherol
Analyte
Result Turnaround Time
0 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
2 mL
Minimum Volume
0.7 mL
Container
Amber plastic tube or foil‑wrapped plastic tube (protected from light)
Collection Instructions
Protect from light; separate serum within 24 hours, send refrigerated or frozen
Patient Preparation
Overnight fasting required
Causes for Rejection
Gross hemolysis; grossly lipemic; plasma; room temperature storage; not protected from light; SST not separated from gel/separator; serum unseparated from clot
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours |
| Refrigerated | 7 days |
| Frozen | 28 days |
Other tests from different labs that may be relevant