Perphenazine, Serum/Plasma

Test Code

PERP

Quest Code

34521

CPT Codes
80299

Preferred Specimen

3 mL serum collected in a red-top tube (no gel)

Minimum Volume

0.7 mL

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top) tube or EDTA (pink-top) tube

Instructions

Promptly centrifuge and separate serum or plasma into a plastic, screw-cap vial using approved guidelines

Transport Container

Transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: Not stable
Refrigerated: 10 days
Frozen: 2 years

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Serum separator tube (SST) • Polymer gel separation tube (PST) • Received room temperature

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

Setup Schedule

Varies

Report Available

13 days

Reference Range

See Laboratory Report

Clinical Significance

Perphenazine is a phenothiazine for treating psychosis. Monitoring its level is important to optimize therapy, to avoid toxicity, and to assure compliance.

Performing Laboratory

NMS Labs

200 Welsh Road

Horsham, PA 19044

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.