Sample Details: Separate serum and remove from clot. Failure to remove serum from clot may lead to inaccurately low vitamin E levels. Protect from light, keep cool, and avoid hemolysis. Severely hemolyzed samples are unsuitable for analysis.
Comment: We strongly recommend that Vitamin E (serum) and Selenium (heparin or EDTA whole blood) be tested together.
Vitamin E testing may be added on to samples already in the lab within 2 days of accessioning, if the original samples were drawn less than one week prior to the add-on request.
Min Sample Volume: 1 ml separated serum.
Collection Container: Avoid preservatives such as Citrate or EDTA. No Gel Clot Vacutainer Tubes (SST tubes).
This analysis was developed to determine the vitamin E (as alpha-tocopherol) concentration in serum samples. Analysis of an inappropriate sample, such as serum collected or stored in gel clot tubes, or plasma instead of serum, could affect the accuracy of the test result.