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Vitamin B6, Plasma : 926
Test CodeVITB6L or 926
Alias/See Also
Pyridoxal™,B6 Vitamin,Pyridoxal Phosphate
CPT Codes
84207
Preferred Specimen
1 mL frozen plasma collected in an EDTA (lavender-top) tube - protected from light
Patient Preparation
Overnight fasting is required.
Minimum Volume
0.5
Other Acceptable Specimens
Foil wrapped transport tube protected from light
Instructions
Separate cells within 24 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 Container
Amber transport tube
Transport Temperature
Frozen
Specimen Stability
Room temperature: 72 hours; Refrigerated: 5 days; Frozen: 14 days, Frozen: -70 42 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lipemia • Not protected from light
Methodology
Chromatography/Mass spectrometry
Setup Schedule
Monday - Friday
Report Available
1-4 days
Limitations
This test was developed and its performance characteristics determined by med fusion. It has not been cleared or approved by the U.S. Food and Drug Administration (FDA). The FDA has determined that such clearance or approval is not necessary. This test is used for clinical purposes. It should not be regarded as investigational for research. This laboratory is certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA) as qualified to perform high complexity clinical laboratory testing.
Reference Range
0-1 year Not established
2-17 years 3.0-35.0 ng/mL
≥18 years 2.1-21.7 ng/mL
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
med fusion
