Test Details

Mnemonic

TADSP

Ordering Code

1750455

CPT-4 Code(s)

80337 (G0480)

Specimen Information

Collect

Red top

Specimen Preparation

Centrifuge, separate serum from cells within two hours and send 2.0 mL serum in a screw capped plastic vial.

Minimum Volume

1.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Serum separator tube (SST), grossly lipemic, hemolyzed, and icteric specimens.

Stability

Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 14 days

Methodology

High Performance Liquid Chromatography
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Reference Range

Drug - Reference Range - Toxic Level
Amitriptyline - NA - >500 ng/mL
Nortriptyline - 50 - 140 ng/mL - >500 ng/mL
Amit & Nort - 90 - 250 ng/mL - >500 ng/mL
Imipramine - NA - NA
Desipramine - 150-300 ng/mL - >500 ng/mL
Imip & Desi - 150 - 300 ng/mL - >500 ng/mL
Doxepin - NA - >500 ng/mL
Nordoxepin - NA - >500 ng/mL
Doxepin & Nordoxepin - 100 - 200 ng/mL - >500 ng/mL
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Performing Laboratory

Warde Medical Laboratory
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New York DOH Approval Status

No
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