Lab Test

Paroxetine

Paxil, Seroxet

Test Codes

ARUP #90786, EPIC: LAB6314, SOFT: XPARX

Specimen Collection Criteria

Collect (preferred specimen): One plain Red-top tube.
Also acceptable: One Lavender-top EDTA tube.

Do not use Serum Separator Tubes.

Physician Office/Draw Specimen Preparation

Centrifuge to separate serum or plasma from cells within one hour 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: 0.4 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 one hour 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: 0.4 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 14 days
Refrigerated (2-8°C or 36-46°F): 1 month
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, forwarded to National Medical Services (NMS), Willow Grove, PA.

Performed

Varies.
Results available in 4-11 days.

Reference Range

By report.

Test Methodology

Quantitative Liquid Chromatography – Tandem Mass Spectrometry.

Interpretation

By report.

Clinical Utility

Paxil (paroxetine hydrochloride) is an orally administered antidepressant. It is indicated for the treatment of depression, social anxiety disorder, obsessive compulsive disorder (OCD) and panic disorder (PD). This assay is used for the therapeutic monitoring and toxicity assessment of paroxetine.

CPT Codes

80332, (alternate code: G0480).

Contacts

Last Updated

3/31/2020

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This directory currently reflects information only for specimens collected and/or processed at the
Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.