Laboratory Lab results are too important to go anywhere else.

Protriptyline

Vivactyl^®

Test Codes

EPIC: LAB6140, Beaker: XPTL, ARUP: 90106

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One plain Red-top tube.

Also acceptable: One Lavender-top EDTA tube.

Do not use Serum Separator Tubes.
Time of Collection: Trough, just prior to the next dose.

Physician Office/Draw Specimen Preparation

Centrifuge to separate serum or plasma from cells within two hours of collection. Transfer serum or plasma to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 1.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Rejection Criteria

Serum Separator (SST) tubes.

Specimens not collected and processed as indicated.

In-Lab Processing

Centrifuge to separate serum or plasma from cells within two hours of collection. Transfer serum or plasma to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 1.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 5 days
Refrigerated (2-8°C or 36-46°F): 5 days
Frozen (-20°C/-4°F or below): 6 months

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to ARUP Laboratories, Salt Lake City, UT.

Performed

Monday, Wednesday, Friday.
Results available within 2-6 days.

Reference Range

Therapeutic Range: 70-240 ng/mL.
Toxic: Greater than 400 ng/mL.

Test Methodology

Quantitative Liquid Chromatography – Tandem Mass Spectrometry (LC-MS/MS).

CPT Codes

80335, (alternate code: G0480).

Contacts

Last Updated

11/3/2023