THIORIDAZINE, SERUM
Marquette General Health System

General Info

Alpha Code

   TDZ

MGH LIS Test No

   966

Schedule

   Twice per Week, Varies

Testing Time

   1 day

Testing Lab

   Mayo Labs

QORR Test Code

   TDZ

Specimen Info

Type

   1 Red Top (Plain)  

Volume

   3.0 mL

Temperature

   Refrigerate

Preservative

    

Collection Info

   Draw blood in plain, red-top tube(s).  Spin down and send 3.0 mL 
of serum.
NOTE: SST tube is not acceptable.      
 
Specimen Acceptability

Methods
High-Pressure Liquid Chromatography (HPLC) THIS TEST IS NOT INTENDED FOR THERAPEUTIC DRUG MONITORING. Blood concentrations in appropriately-treated patients are widely variable. Results must be interpreted in light of patient's clinical state. Lower limit of detection is 20 ng/mL. Some adequately treated patients will have results lower than this limit.

Clinical Utilities
Thioridazine (Mellaril) is a phenothiazine used to treat psychotic disorders (e.g., schizophrenia). It is also used to treat patients having multiple mood disorders including depression, anxiety, tension, sleep disturbances, and fears. The antipsychotic activity is thought to be attributable in part to blockage of dopamine receptors in the central nervous system.

CPT Codes
84022

Reference Range
Therapeutic concentration: >50 ng/mL
20 ng/mL (lower limit of detectability)
Toxic concentration (automatic call-back):  > or = 1,500 ng/mL      

Component Information

Collection Notes

Additional Comments

 

Questions or Comments email support@mgh.org

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