Vitamin B6, Plasma (Lavender, Room temp, Light protected)

Test Code

14160

CPT Codes
84207<br>Restricted Client Code

Preferred Specimen

1 mL plasma collected from an EDTA (lavender-top) tube

Patient Preparation
Overnight fasting is required

Minimum Volume

0.5 mL

Instructions

Separate cells within 24 hours by centrifugation at 2-8° C (2200-2500 RPM, 800-1000 g) 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 tube - protected from light

Transport Temperature

Frozen

Specimen Stability

Room temperature: 72 hours
Refrigerated: 5 days
Frozen -20° C: 14 days
Frozen -70° C: 42 days

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

Hemolysis • Lipemia • Not light protected

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

Set up: Mon-Sat; Report available: 2-4 days

Reference Range

See Laboratory Report

Clinical Significance

Test is used to determine vitamin B6 deficiency or overdosage, for monitoring treatment, and to evaluate wellness and health.

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.