Test directory: Clozapine & Norclozapine

Ordering Code4644
Test NameClozapine & Norclozapine
AliasClozaril
Preferred SpecimenPlasma
Preferred ContainerEDTA, K2 (Lavender)
No gel barrier tubes.
Other Specimen/ContainerPlasma in Lithium Heparin (Green), Plasma in Sodium Heparin (Green), Serum in Plain (Red)
Optimum Volume2 mL
Collection InstructionsDo Not use SST
Do Not use PST
Optimum time to collect sample is 1-2 hours prior to the next dose.
Transport RequirementsOahu: Frozen
Airline: Frozen
Specimen StabilityAmbient: 24 Hours
Refrigerated: 5 Days
Frozen: 30 Days
Rejection CriteriaGel barrier tube, Grossly hemolyzed, Serum separator tube
Avail. StatNO
Analytic TimeUp to 7 Days
MethodologyLiquid Chromatography Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of November 21, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
NorclozapineALLSee report.
Clozapine, PlasmaALLSee report.