Test Overview

Test Methodology

Gas Chromatography (GC)

Test Usage

Monitor compliance; assess toxicity.

Reference Range*

Thioridazine: Steady-state serum concentration during chronic oral administration of 400 mg daily: 140 - 2600 ng/mL. Therapeutic steady-state concentrations may overlap levels associated with toxicity; Mesoridazine: 100 - 1400 ng/mL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Days Test Performed

Tuesday, Thursday

Analytic Time

5 - 8 days

Soft Order Code

SO

Synonyms

Synonyms

Mellaril
Mesoridazine
THIORIDAZINE (MELLARIL)
MESORID
THIORID
THIORIDAZINE

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Laboratory

Sendout

Laboratory Reference

Warde THIR (NMS 4461SP)

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Specimen Requirements

Offsite Collection Instructions

Collect blood in a red top tube; do not use SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Rejection Criteria

SST tube not acceptable.

Container

Yellow Top Tube
Red Top Tube

Normal Volume

2.0 mL serum

Minimum Volume

0.7 mL serum

Additional Information

Test sent to Warde Medical Laboratory; performed by NMS Labs.

Billing Information

Fee Codes


CPT Code

80342

LOINC

Z223-8

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