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Test Name: Vitamin B6
Test Code: 004655
Other Names: N/A
Test Includes: Vitamin B6
Specimen Requirements: Plasma, PROTECTED FROM LIGHT, 2 mL
Container: Lavender-top (EDTA) tube or green-top (heparin) tube; amber plastic transport tube with amber-top. (If amber tubes are unavailable, cover standard transport tube completely, top and bottom, with aluminum foil. Identify specimen with patient's name directly on the container 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: Draw blood. Immediately separate plasma from red cells. Protect specimen from light.
Stability: Maintain plasma in plastic transport tube at room temperature or refrigerated and PROTECT FROM LIGHT.
Rejection Criteria / Special Instructions: N/A
Methodology: High-pressure liquid chromatography (HPLC) with fluorescence detection, measuring the biologically active form of vitamin B(6) - pyridoxal-5-phosphate