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Laboratory: Clinical Biochemistry
Test Name:
CLOZAPINE (NORCLOZAPINE) - (P)
Test Code: CLOZ
Clinical Information:
CAUTION: CHECK CORRECT TEST IS ORDERED. THERE ARE MULTIPLE DRUGS WITH SIMILAR NAMES
 

Alternate Name:  Clozaril
 

Test performed at:  St Boniface Hospital by Shared Health Clinical Biochemistry Laboratory using a liquid chromatograph tandem mass spectrometry (LC-MS/MS) method. This is a lab developed test.
 
Collect blood at least 10 hours after last dose.

Collection Devices:
Do not use separator gel.
Specimen Required:


Plasma: 1.0 mL

Serum collected without gel is also acceptable.
Referral:
Requisition:
Reference Values:
 TherapeuticToxic
clozapine350 - 600 ng/mL> 1200 ng/mL
norclozapine100 - 600 
clozapine + norclozapine> 450 


 
clozapine (nmol/L) x 0.33 = ng/mL
norclozapine (nmol/L) x 0.31 = ng/mL

Availability:
Once Per Week
See Also:
More Information: