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VITME / VITE-M
VITAMIN E, SERUM

Test Code VITME / VITE-M 
Test VITAMIN E, SERUM 
Methodology Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Specific quantitation of alpha-tocopheral. 
Description Useful For:
- Evaluation of individuals with motor and sensory neuropathies
- Monitoring vitamin E status of premature infants requiring oxygenation
- Evaluation of persons with intestinal malabsorption of lipids 
Specimen Draw blood in a plain, red-top tube(s) following an overnight (12-14 hour) fast (infants-draw prior to next feeding). Serum gel tube is not acceptable. Spin down and send 0.5 mL (minimum 0.25 mL) serum refrigerated in a plastic vial. PROTECT SPECIMEN FROM LIGHT.

NOTE:
Acute ethanol ingestion may result in increased serum vitamin A levels. Testing of nonfasting specimens or the use of vitamin supplementation can result in elevated plasma vitamin concentrations. Reference values were established in patients who were fasting. 

Reference Values 0-17 years: 3.8-18.4 mg/L
> or = 18 years: 5.5-17.0 mg/L
Significant deficiency: <3.0 mg/L
Significant excess: >40 mg/L 
Analytic Time 2 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 84446