NIH Clinical Center
Dept. of Lab Medicine | Dept. of Transfusion Medicine | Anatomic Pathology Test Guide > Lab Test
 Lab Test
 Test Description
Panel Name:
Test Name:
Clozapine & Norclozapine
Panel Tests:
LIS Test Code:CLZP2
Synonyms: Clozaril
Department:Laboratory Medicine
Lab Area:Mayo Medical Labs
TAT:2-4 days
 Specimen Collection


Container:Red (Plastic)

Micro. Container:

Collection Instructions:

Delivery Instructions:Send specimen to 2C324 or Tube Station 321
Specimen Type: Blood
Frequency / Restrictions:
 Expected Values/Results

Ranges and Interpretation:

Clozapine & Norclozapine  ng/mL   (SI: mcg/L = 1.0 x ng/mL)
Peformed at Mayo Medical Laboratories, Rochester MN
Effective 20Mar13 – present:
Therapeutic range: >350 ng/mL

Clozapine + Norclozapine
Therapeutic range: >450 ng/mL

Organisms Reported:

Alert Limits:


 Additional Test Information



Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)


Archived Ranges:Historical Reference Ranges


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