Vitamin E (Tocopherol)

Message

Serum must be poured off, do not send in mother tube.

Test Code

VITE

Quest Code

931

CPT Codes
84446

Includes

Vitamin E, Alpha-Tocopherol and Vitamin E, Beta-Gamma-Tocopherol

Preferred Specimen

2 mL serum - protected from light

Patient Preparation
Overnight fasting is required

Minimum Volume

0.7 mL

Instructions

Separate from cells as soon as possible after clotting. Aliquot and send serum in an amber tube. If an amber tube is not available, wrap aliquot tube in aluminum foil to protect from light.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Grossly lipemic sera • Received room temperature • Not light protected • Plasma • Serum unseparated from the clot • Serum in serum separator tube not separated from the gel

Methodology
Chromatography

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Set up: Mon-Sat; Report Available: 3 days

Reference Range

See Laboratory Report

Clinical Significance

Deficiency of vitamin E may cause extensive neuropathy in young children and, in addition, is suspect as a possible cause of motor and sensory neuropathy in older children and in adults. One likely cause of vitamin E deficiency is intestinal malabsorption, resulting from bowel disease, pancreatic disease, or chronic cholestasis. Other causes of malabsorption of vitamin E include celiac disease, cystic fibrosis, and intestinal lymphangiectasia.

Performing Laboratory
MedFusion
2501 South State Highway 121 Suite 1100
Lewisville, TX 75067-8188

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.