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Vitamin B6, Plasma 926
Test CodeVITB6
Alias/See Also
VITB6
CPT Codes
84207
Preferred Specimen
1 mL plasma collected in an EDTA (lavender-top) tube - protected from light
Patient Preparation
Overnight fasting is required.
Minimum Volume
1
Instructions
Fasting specimen. Draw one Lavender protect from light plasma sent frozen
Transport Container
LAV
Transport Temperature
F
Specimen Stability
Room temperature: 72 hours
Refrigerated: 5 days
Frozen -20°C: 14 days
Frozen -70°C: 42 days
Refrigerated: 5 days
Frozen -20°C: 14 days
Frozen -70°C: 42 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lipemia • Received room temperature • Received refrigerated • Not light protected
Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Tues-Sat; Report available: 2-4 days
Reference Range
0-1 year | Not established |
2-17 years | 3.0-35.0 ng/mL |
≥18 years | 2.1-21.7 ng/mL |
Clinical Significance
Test is used to determine vitamin B6 deficiency or overdosage, for monitoring treatment, and to evaluate wellness and health.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153