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Vitamin E (Tocopherol) : 931
Test CodeVITME or 931
Alias/See Also
Tocopherol
CPT Codes
84446
Includes
Vitamin E, Alpha-Tocopherol and Vitamin E, Beta-Gamma-Tocopherol
Instructions
Separate from cells as soon as possible after clotting. Send serum in an amber tube. If an amber tube is not available, wrap transport tube in aluminum foil to protect from light.
Transport Container
Preferred Specimen
2 mL serum - protected from light
Minimum Volume
0.7 mL
2 mL serum - protected from light
Minimum Volume
0.7 mL
Transport Temperature
Frozen.
Specimen Stability
Room temperature: 24 hours; Refrigerated: 7 days; Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed; Heavily lipemic sera; Received in Serum separator tube (SST) or red-top tube (no gel) collection tube; Received room temperature; Not light protected; Plasma
Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Setup Schedule
Monday - Saturday
Report Available
2-3 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
med fusion
