Vitamin B6 (Pyridoxal 5-Phosphate) VITB6
|Method(s)||High Performance Liquid Chromatography|
One 6 mL green (sodium or lithium heparin) top tube. Plain red (serum) top tubes are also acceptable.
|Transport||1 mL plasma, frozen in an amber standardized transport tube. (Min: 0.5 mL)|
|Stability||After separation from cells: Ambient: Unacceptable; Refrigerated: 4 hours; Frozen: 2 months|
Nonfrozen specimens, EDTA, and whole blood. Hemolyzed specimens.
|Notes||CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. Protect from light during collection, storage, and shipment. Separate plasma from cells and freeze within 1 hour of collection into an amber transport tube.|
|Preferred Specimen Collection Device(s)|