Vitamin B6, Plasma

Test Code

004655

Alias/See Also

B(6), B(6), Vitamin; PLP; Pyridoxal-5-Phosphate; Pyridoxine

CPT Codes
84207

Preferred Specimen

Plasma, PROTECTED FROM LIGHT

Minimum Volume

1.2 mL

Instructions

Draw blood. Immediately separate plasma from red cells. Protect specimen from light.

Transport Container

Lavender-top (EDTA) tube or green-top (heparin) tube; amber plastic transport tube with amber-top. (If amber tubes are unavailable, cover standard transport tube completely, top and bottom, with aluminum foil. Identify specimen with patient's name directl

Transport Temperature

Maintain plasma in plastic transport tube at room temperature or refrigerated and PROTECT FROM LIGHT.

Specimen Stability

Room temp/Refrigerated: 14 days; Frozen: 16 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Specimen not protected from light; hemolysis; use of anticoagulants other than EDTA or heparin

Methodology
High-pressure liquid chromatography (HPLC) with fluorescence detection, measuring the biologically active form of vitamin B(6) - pyridoxal-5-phosphate

Setup Schedule

Daily 1st and 3rd shift

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.