A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Vitamin B6, Plasma
Test Code926
Alias/See Also
LAB120
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 mL
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 tube 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° C: 42 days
Refrigerated: 5 days
Frozen: 14 days
Frozen -70° C: 42 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lipemia • Not protected from light
Methodology
Chromatography/Mass Spectrometry
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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Sun-Fri
Report Available
2-5 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
med fusion |
2501 South State Hwy 121, Suite 1100 |
Lewisville, TX 75067-8188 |