Test Details

Mnemonic

VENLA

Ordering Code

3510990

CPT-4 Code(s)

80299

Specimen Information

Patient Preparation

Draw immediately before next dose. Also, appropriate is drawing 12 hours after an oral dose.

Collect

Red top

Specimen Preparation

Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum in a screw capped plastic vial.

Minimum Volume

0.4 mL

Transport Temperature

Refrigerated

Rejection Criteria

SST, gross hemolysis, gross lipemia, gross icterus

Stability

Room temperature: 28 days
Refrigerated: 28 days
Frozen: 28 days

Methodology

Liquid Chromatography/Tandem Mass Spectrometry
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Reference Range

Venlafaxine + O-desmethylvenlafaxine: 195-400 ng/mL
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Performing Laboratory

Mayo Clinic Laboratories
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New York DOH Approval Status

Yes
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