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| Test Name: | Vitamin A, E, Beta Carotene |
|---|---|
| Test Code: | 144014 |
| Other Names: | N/A |
| Test Includes: | Carotene, Beta, Vitamin A, Serum, Vitamin E(Alpha Tocopherol) |
| Specimen Requirements: | Serum, FROZEN AND refrigerated, BOTH PROTECTED FROM LIGHT, Two aliquots: 0.7 mL EACH, FROZEN AND refrigerated |
| Container: | Red-top tube or gel-barrier tube; amber plastic transport tube with amber top. (If amber tubes are unavailable, cover standard transport tubes completely, top and bottom, with aluminum foil. Identify specimens with the patient's name directly on the containers AND on the outside of the aluminum foil. Secure with tape.) For amber plastic transport tube and amber top, order LabCorp item ID 23598. |
| Collection Instructions: | Specimens should be free from hemolysis. PROTECT FROM LIGHT. Transfer specimens to separate amber plastic transport tubes, freezing one of the transport tubes. To avoid delays in turnaround time when requesting multiple tests on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED. SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED. |
| Stability: | FREEZE one sample and maintain second sample refrigerated AND protect BOTH samples from light. |
| Rejection Criteria / Special Instructions: | Patients must be fasting for a minimum of eight hours. Patients should avoid foods containing vitamin A or carotene for 48 hours (24 hours for patients younger than six months of age). |
| Methodology: | High-pressure liquid chromatography (HPLC) |