Test Details

Mnemonic

VB2

Ordering Code

3422140

CPT-4 Code(s)

84252

Specimen Information

Patient Preparation

Avoid vitamin supplements for 24 hours prior to draw. Overnight fasting required.

Collect

Lavender EDTA

Specimen Preparation

Centrifuge, separate plasma from cells and send 2.0 mL in an amber screw capped plastic vial. PROTECT FROM LIGHT.

Minimum Volume

0.5 mL

Transport Temperature

Frozen

Rejection Criteria

Serum separator tube (SST) or Plasma separator tube (PST)

Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days

Methodology

Chromatography/Mass Spectrometry
more

Reference Range

6.2 - 39.0 nmol/L
more

Performing Laboratory

Quest
more

New York DOH Approval Status

Yes
more