Days Set Up
Tuesday, Thursday
Analytic Time

5 - 8 days

Soft Order Code
SO

Test Updated:

Synonyms

Mellaril
Mesoridazine
THIORIDAZINE (MELLARIL)
MESORID
THIORID
THIORIDAZINE

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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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.

Specimen Requirements

Collection Onsite

Collect blood in a red top tube; do not use SST tube.

Collection Offsite

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

Yellow Top Tube
Red Top Tube
Normal Volume
2.0 mL serum
Minimum Volume
0.7 mL serum

Billing Information

CPT Code
80342
Pro Fee Code
 
LOINC
Z223-8

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.