Serum or Plasma Substance Concentration by Immunoassay (e.g., for Vitamin E, Alpha-Tocopherol)
This test measures the amount of vitamin E (a fat-soluble antioxidant) in your blood, either serum or plasma.
["Vitamin E helps protect your cells from damage and supports immune function."]
Key facts at a glance
- LOINC
- 10907-4
- Short code
- SLEV IgM Titr Ser IF
- Synonyms
- SLEV IgM Titr Ser IF
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- if
- CPT
- 82784
- 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 Is This Test Done?
Your healthcare provider may order this test to check for vitamin E deficiency, monitor vitamin E levels in certain conditions (like liver disease or malabsorption), or evaluate symptoms such as muscle weakness, nerve problems, or vision issues that might be linked to low vitamin E levels.
What to Expect Before the Test
No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if your blood is drawn early in the morning. Bring any medications or supplements you take regularly to your appointment.
What Happens During the Test?
A healthcare professional will draw blood from a vein in your arm. You may feel a slight pinch, but it usually doesn’t cause discomfort. The test involves sending the blood sample to a lab for analysis using an immunoassay method to measure vitamin E levels.
What Are Possible Results?
Results are reported as a concentration value (e.g., micrograms per deciliter or milligrams per deciliter), but exact reference ranges can vary by lab. Your provider will interpret the results in relation to your health and symptoms.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Vitamin E Level
Frequently asked questions
Low vitamin E levels may indicate malabsorption (e.g., celiac disease, Crohn’s disease), liver or bile duct issues, or certain genetic disorders. High levels might be seen in rare conditions or with excessive vitamin E supplementation.
A low vitamin E level could suggest a deficiency, which may lead to nerve or muscle problems. Your doctor may recommend dietary changes, supplements, or further testing to identify the underlying cause.
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your provider will contact you once they have the results.
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