Fluphenazine Level, Serum/Plasma

Prolixin, Permitil

Test Codes

EPIC: LAB1231983, Beaker: XFLUP, Quest: 92021

Department

Send Outs

Specimen Collection Criteria

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

Physician Office/Draw Specimen Preparation

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

Preparation for Courier Transport

Transport: 2.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Minimum: 0.7 mL)

Rejection Criteria

• Serum Separator (SST) tubes.
• Received room temperature.
• Specimens not collected and processed as indicated.

In-Lab Processing

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

Transport: 2.0 mL serum or plasma, refrigerated (2-8°C or 36-46°F). (Minimum: 0.7 mL) 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 24 hours
Refrigerated (2-8°C or 36-46°F): 10 days
Frozen (-20°C/-4°F or below): 2 years

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 Quest Diagnostics, Wood Dale, IL.

Performed

Varies.
Results available in 3-7 days.

Reference Range

By report.

Test Methodology

High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS).

Clinical Utility

Fluphenazine is a phenothiazine derivative used in the treatment of psychotic disorders. It is also used to alleviate pain and in childhood development disorders. This assay is used for the therapeutic monitoring and toxicity assessment of fluphenazine.

CPT Codes

80299

Contacts

Last Updated

11/19/2025