Vitamin B6, Plasma
Also known as: B6, B6, Vitamin, PLP, Pyridoxal-5-Phosphate, Pyridoxine
Use
Detect vitamin B6 deficiency
Special Instructions
Not provided.
Limitations
This test was developed and its performance characteristics determined by Labcorp, but it has not been cleared or approved by the FDA. Specimens not collected in EDTA tubes or not protected from light may be rejected. Vitamin B6 levels may be affected by malabsorption conditions and certain medications.
Methodology
Mass Spectrometry
Biomarkers
Pyridoxal 5-Phosphate
Analyte
LOINC Codes
- 95266-3 - Vit B6 + metabolites Pnl SerPl
- 30552-4 - Pyridoxal Phos SerPl-mCnc
Result Turnaround Time
4-6 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
0.5 mL
Minimum Volume
0.25 mL
Container
Lavender-top (EDTA) tube; amber plastic transport tube with amber-top
Collection Instructions
Collect blood by venipuncture into a lavender-top tube containing EDTA and mix immediately by gentle inversion at least six times. The plasma must be separated and protected from light in an amber transport tube with amber stopper. Store refrigerated or frozen immediately.
Storage Instructions
Refrigerate or freeze and protect from light.
Causes for Rejection
Anticoagulants other than EDTA; specimen not protected from light
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 3 days |
| Refrigerated | 15 days |
| Frozen | 15 days |
Other tests from different labs that may be relevant