Vitamin E (alpha-tocopherol) plasma concentration
This test measures the amount of vitamin E, a fat-soluble antioxidant, in your blood plasma. Vitamin E helps protect cells from damage caused by free radicals.
["Vitamin E supports immune function and may help reduce oxidative stress in the body."]
Key facts at a glance
- LOINC
- 8818-7
- Short code
- RV EF MR
- Synonyms
- RV EF MR
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- mr
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why Might This Test Be Ordered?
Your healthcare provider may order this test to check for vitamin E deficiency, especially if you have symptoms like muscle weakness, nerve problems, or a history of certain medical conditions. It can also be used to monitor vitamin E levels in people taking supplements or those with conditions affecting fat absorption (e.g., certain gastrointestinal disorders).
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for a few hours before the blood draw if your provider specifies it. Bring any supplements you take regularly to discuss with your doctor.
What the Test Results Mean
Results help determine if your vitamin E levels are within a healthy range. Low levels may indicate a need for dietary changes, supplements, or further evaluation of underlying health issues.
Common Reasons for Testing
This test is often part of a broader evaluation for conditions like vitamin E deficiency syndrome, certain neurological disorders, or as a preventive measure for people at higher risk due to genetics or lifestyle.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Low vitamin E levels can lead to oxidative stress, which may contribute to chronic diseases like heart disease or neurological disorders. Early detection through blood testing allows for timely interventions, such as dietary adjustments or supplementation, to restore balance and prevent complications.
Short name
Vitamin E level
Frequently asked questions
How long does it take to get my vitamin E test results?
Can I take vitamin E supplements before my test?
What symptoms might indicate low vitamin E levels?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy