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.
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Collect

Plain red-top
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Specimen Preparation

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

0.4 mL
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Transport Temperature

Refrigerated
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Rejection Criteria

SST, gross hemolysis, gross lipemia, gross icterus
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Stability

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