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VITAMIN B6 (PYRIDOXINE)
Number 580
CPT Code 84207
Alias PYRIDOXINE, PYRIDOXAL-5-PHOSPHATE
Specimen Container Lavender Top
Specimen Type Plasma EDTA
Turn Around Time
Days Performed
Reference Range Male: 5.3-46.7 ug/L; Female: 2.0-32.8 ug/L
Alternate Specimen Green top heparin tube
Volume 2 mL Plasma
Stability Ambient 14 Days
Stability Refrigerated 14 Days
Stability Frozen 16 Days
Patient Preparation
Methodology
High-pressure liquid chromatography (HPLC)
Limitations
Evaluation is complicated by the knowledge that some individuals have an unusually high requirement for vitamin B6.
Rejection Criteria
Specimen not protected from light; hemolysis
Additional Instructions
Protect from light
Performing Laboratory Reference Laboratory
TagsPLP, B6