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23082 Thioridazine and Mesoridazine (119)

Thioridazine and Mesoridazine (119)
Test Code: THIORID
Synonyms/Keywords
Mellaril®​
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Serum​ ​Red Top Tube (RTT) ​ ​1 mL ​1 mL ​
​Plasma ​Lithium-heparin Green Top Tube or Sodium-heparin Green Top Tube (GTT) ​ ​1 mL ​1 mL ​
Collection Processing Instructions
Trough levels are most reproducible
Specimen Stability Information
Specimen Type Temperature Time
​Serum or Plasma ​ Ambient temperature is acceptable for shipping and/or short-term storage ​ 3 days​
Specimen may also be refrigerated or frozen for longer storage​
Rejection Criteria
Serum Separator Tube (SST) Reject
​Plasma Separator Tube (PST) Reject​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Medtox Laboratories​ Performed Monday through Friday​ 5 days​
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab
Medtox Laboratories
Reference Range Information
Reference Range
Thioridazine, ng/mL
Report Limit
20 ng/mL
Reference Range
250 - 1250 ng/mL
Critical Value - High
1800 ng/mL
 
Mesoridazine, ng/mL
Report Limit
20 ng/mL
Reference Range
150 - 1000 ng/mL
Critical Value - High
1500 ng/mL
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​80342 ​ ​ ​ ​
Synonyms/Keywords
Mellaril®​
Ordering Applications
Ordering Application Description
​Centricity ​Thioridazine (Mellaril)
​Cerner ​Thioridazine (Mellaril)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Serum​ ​Red Top Tube (RTT) ​ ​1 mL ​1 mL ​
​Plasma ​Lithium-heparin Green Top Tube or Sodium-heparin Green Top Tube (GTT) ​ ​1 mL ​1 mL ​
Collection Processing
Trough levels are most reproducible
Specimen Stability Information
Specimen Type Temperature Time
​Serum or Plasma ​ Ambient temperature is acceptable for shipping and/or short-term storage ​ 3 days​
Specimen may also be refrigerated or frozen for longer storage​
Rejection Criteria
Serum Separator Tube (SST) Reject
​Plasma Separator Tube (PST) Reject​
Reference Range Information
Reference Range
Thioridazine, ng/mL
Report Limit
20 ng/mL
Reference Range
250 - 1250 ng/mL
Critical Value - High
1800 ng/mL
 
Mesoridazine, ng/mL
Report Limit
20 ng/mL
Reference Range
150 - 1000 ng/mL
Critical Value - High
1500 ng/mL
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Medtox Laboratories​ Performed Monday through Friday​ 5 days​
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab
Medtox Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​80342 ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.