CLOZAPINE

Test Code
CLOZAPINE(BHS)


Preferred Specimen
Serum-Plain Red


Minimum Volume
200 uL


Instructions
Do Not Use Serum Separator Tubes. Trough samples (12 hours after the last dose) at steady state (3 days after a dose change) are recommended for testing. Prepare serum within 2 hours of blood collection.


Transport Temperature
Refrigerated


Specimen Stability
Serum samples may be stored at room temperature or 2 to 8°C for up to 7 days before testing.


Methodology
Homogenous two reagent nanoparticle agglutination assay

Setup Schedule
Daily


Report Available
In less than 2 days


Limitations
As with any assay utilizing mouse antibodies, the possibility exists for interference by human anti-mouse antibodies (HAMA) in the sample. Samples containing such antibodies can potentially produce erroneous clozapine results, which are inconsistent with the patient’s clinical profile.
 


Reference Range
350-600 ng/mL


Clinical Significance
Clozapine 8-chloro-11-(4-methyl-1-piperazinyl)-5H-dibenzo [b,e] [1,4] diazepine is a tricyclic dibenzodiazepine derivative atypical antipsychotic agent used for treatment resistant schizophrenia and reducing suicidal behavior in schizophrenia and schizoaffective disorder.


Performing Laboratory
West Roxbury Chemistry
Jonathan Dryjowicz-Burek
857-203-5418



Last Updated: January 7, 2025


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.