Test Details
Mnemonic
VITB6
Ordering Code
1060140
CPT-4 Code(s)
84207
Specimen Information
Patient Preparation
Fast overnight, no alcohol and vitamins 24 hours prior to sample collection. Infant: draw prior to next feeding.
Collect
Lavender EDTA
Specimen Preparation
Centrifuge, separate plasma from cells and send 1.0 mL plasma frozen (within 6 hours) in an amber screw capped plastic vial. PRTOECT FROM LIGHT. CRITICAL FROZEN.
Alternate Specimen
Serum: Red top or Serum separator tube (SST)
Plasma: Green sodium heparin, green lithium heparin
Plasma: Green sodium heparin, green lithium heparin
Minimum Volume
0.5 mL
Transport Temperature
Critical frozen
Rejection Criteria
Specimen not protected from light.
Specimen not frozen.
Specimen not frozen.
Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 14 days
Refrigerated: Unacceptable
Frozen: 14 days
Methodology
High Performance Liquid Chromatography
Reference Range
5 - 50 µg/L
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
No