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 Set Up
Tuesday, Thursday
Analytic Time

5 - 8 days

Soft Order Code
SO
Synonyms
  • Mellaril
  • Mesoridazine
Laboratory
Sendout
Reference Laboratory
Warde THIR (NMS 4461SP)
Section
Special Testing
Specimen Requirements
Collection Instructions

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

Normal Volume
2.0 mL serum
Minimum Volume
0.7 mL serum
Rejection Criteria
SST tube not acceptable.
Additional Information

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

Billing
CPT Code
80342
Fee Code
22109
LOINC
Z223-8
NY State Approved
No