Vitamin E, Serum or Plasma
Also known as: VIT E
Use
This test is used for the nutritional assessment of vitamin E, specifically examining the levels of alpha- and gamma-tocopherols in the serum or plasma. Vitamin E is an important antioxidant and its levels can help in evaluating deficiency or toxicity, as well as overall nutritional status.
Special Instructions
Patients should fast for 12 hours and avoid alcohol for 24 hours prior to specimen collection. Collect specimens in a green (sodium or lithium heparin) or serum separator tube. Lavender (EDTA) or pink (K2EDTA) tubes are also acceptable. After collection, separate serum or plasma from cells within 1 hour and ensure proper storage conditions.
Limitations
The test is performed in a CLIA certified laboratory as a Laboratory Developed Test (LDT), but has not been cleared or approved by the FDA. Whole blood or body fluids other than serum or plasma are unacceptable conditions, which may lead to specimen rejection. Hemolysis should be avoided during specimen handling.
New York Approved
Methodology
Mass Spectrometry
Biomarkers
LOINC Codes
- 1823-4
- 11038-7
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.2 mL
Container
Green (sodium or lithium heparin) or serum separator tube
Collection Instructions
Separate serum or plasma from cells within 1 hour of collection.
Patient Preparation
Patient should fast for 12 hours and abstain from alcohol for 24 hours prior to collection.
Storage Instructions
Refrigerated.
Causes for Rejection
Whole blood or body fluids other than serum or plasma.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 month |
| Frozen | 1 year |