89360:VITAMIN E
Author PeaceHealth Laboratories
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| Alias Names: |
Alpha Tocophero |
| Methodology: |
High Performance Liquid Chromatography (HPLC) |
| Edit Date: |
6/11/2010 |
| Performed: |
Sunday, Tuesday-Saturday |
| Released: |
1-4 days after setup at PeaceHealth Laboratories’ reference lab. |
| CPT Code: |
84446-90 |
| Specimen Collection Details |
| Collection: |
One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL green top tube (heparin), or one 4 mL lavender top tube (EDTA). Draw following overnight (12 hour) fast. Patient must not consume alcohol for 24 hours prior to draw. Protect from light during collection, storage, and transport. |
| Handling: |
Allow to clot, centrifuge and separate serum or plasma from cells and pour into a plastic transport tube immediately. Refrigerate. Protect from light. |
| Stability: |
Specimen stable 1 month refrigerated or 1 year frozen. Specimen unstable ambient. |
| Standard Volume: |
1 mL serum or plasma. |
| Minimum Volume: |
200 µL serum or plasma. |
| Transport: |
Refrigerated. |
| Comments: |
Vitamin E often correlates with serum lipids. Significant deficiency of vitamin E (<3.0 mg/L) is associated with improper specimen collection and malabsorption syndromes. Significant excess (>40 mg/L) is often associated with hyperlipidemia. |
| Rejection Criteria: |
Hemolysis. |
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Alpha-tocopherol (Vitamin E) |
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Interpretaton |
Gamma-Tocopherol (Vitamin E) |
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Age |
Premature infants |
0-1 month |
2-5 months |
6 months – 1 year |
2-12 years |
13 years/older |
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Reference Range |
0.5-3.5 mg/L |
1.0-3.5 mg/L |
2.0-6.0 mg/L |
3.5-8.0 mg/L |
5.5-9.0 mg/L |
5.5-18.0 mg/L |
Normal |
0.0-6.0 mg/L |
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