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Vitamin B6

Lab Section:  Sendout  
Lab Location:  Sendout
Reference Lab: Quest 
Test ID: LAB120 
Methodology: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Schedule: Tuesday-Saturday
Reported: 7 days
Specimen Requirements:  Collection: 3.0 mL Blood in a Lavender Top Tube.
Pediatric volume: 1 mL.
Separate cells within 6 hours by centrifugation at 2-8 C (2200-2500 rpm, 800-1000g) for 5-10 minutes. Transfer plasma to an amber polypropylene or polyethylene transport tube to protect from light. Alternately, neutral color polypropylene or polyethylene tubes can be used if wrapped in aluminum foil. Freeze the tubes at -10 to -30 C. Ship frozen.
Transport: Frozen.
Handling: Overnight fasting is required.
Unacceptable conditions: Received room temperature Received refrigerated Hemolysis Lipemia
Stability: Room temperature: 6 hours Refrigerated: 12 hours Frozen -20C: 6 days Frozen -70C: 42 days


Clinical Indications: Test is used to determine vitamin B6 deficiency or overdosage, for monitoring treatment, and to evaluate wellness and health.

Reference Interval:  See patient report or consult reference laboratory website.
CPT Code(s): 84207
Last Changed: 12/16/2016 14:08:26
Last Reviewed: 12/27/2016 03:10:05