vitamin_e_tocopherol_test
Reviewed
A vitamin E test measures the amount of vitamin E in your blood. Vitamin E is a nutrient found in every cell that helps nerves and muscles work, prevents blood clots, and boosts the immune system. Too little or too much vitamin E can cause serious health problems.
Preparation and collection
You will probably need to fast (not eat or drink) for 12-14 hours before the test.
Understanding this test
Use the reference interval and units printed by the laboratory that performed the test. A result outside that interval is not a diagnosis by itself, and a result inside it does not rule out every condition. Your symptoms, history, medicines, timing, and related tests can change what the result means.
- The test does not diagnose the cause of abnormal levels; your provider will use your medical history and other tests.
- Vitamin E supplements may affect how certain medicines work, including blood thinners and cancer medicines, and may affect your body's ability to use other vitamins.
What to do next
If you have been taking vitamin E supplements and have high levels, you will need to stop. If vitamin E has caused problems with bleeding, your provider may also prescribe medicines to treat you. You can usually treat vitamin E deficiency by taking vitamin supplements and treating any conditions that may be blocking absorption.
Evidence source
U.S. National Library of Medicine: vitamin_e_tocopherol_test