Alpha-tocopherol
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Vitamin E (LC-MS/MS), Serum/Plasma
Test ID: BVITEB
Test
Aliases/Synonyms
Method
LC-MS/MS
Report Includes
Vitamin E
Specimens
Gel-separator tubes are not acceptable; Serum; Plasma (EDTA); Plasma (Li Heparin)
Clinical Utility
Fat soluble vitamin. Deficiency causes extensive neuropathy in children and may be caused by bowel disease, pancreatic disease, celiac disease and cystic fibrosis.
Test Location
London Health Sciences Centre, 339 Windermere Road, London ON N6A 5A5
Test Version
19-Jan-2023
Specimen
Specimens
Gel-separator tubes are not acceptable; Serum; Plasma (EDTA); Plasma (Li Heparin)
Collection Containers
Red top (no additive);Lavender top (EDTA);Green top (Li heparin)
Sample Volume
2 mL
Minimum Volume
1 mL
Specimen Comment
Avoid gel separator tubes
Patient Preparation
Fasting (12 – 14 h) recommended but non-fasting is acceptable. Avoid vitamin supplementation for 24 hours prior to collection.
Collection & Handling
Handling Information
Store and submit specimen protected from light.
Store and send frozen.
Stability
| Ambient | Unacceptable |
|---|---|
| Refrigerated | 28 days |
| Frozen | 28 days |
Rejection Criteria
| Hemolysis | Gross |
|---|---|
| Lipemia | Gross |
| Specimen | Gel-separator tube or not protected from light |
Test Version
19-Jan-2023
Performance / Interpretation
Method
LC-MS/MS
Turnaround Time
10 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Vitamin E | µmol/L |
|
mg/dL x 23.2 | |
Test Location
London Health Sciences Centre, 339 Windermere Road, London ON N6A 5A5
Test Version
19-Jan-2023
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| BVITEB | 39762Vitamin E | umol/L |
Test Version
19-Jan-2023