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Test Code CLOZPM Clozapine, Serum

Additional Codes

MAYO Test ID
CLZ
EPIC Test ID
LAB2361

 

Useful For

Monitoring patient compliance

 

An aid to achieving desired plasma levels

Method Name

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

Reporting Name

Clozapine, S

Specimen Type

Serum Red


Specimen Required


Container/Tube: Red top

Specimen Volume: 1 mL

Additional Information: Therapeutic range (trough level) applies to specimens drawn immediately prior to next dose.


Specimen Minimum Volume

0.6 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Red Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross OK

Icterus

Mild OK; Gross reject

Other

Serum gel tube

Reference Values

CLOZAPINE

Therapeutic range: >350 ng/mL

 

CLOZAPINE + NORCLOZAPINE

Therapeutic range: >450 ng/mL

Day(s) and Time(s) Performed

Monday through Friday

Analytic Time

3 days

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

80159

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CLZ Clozapine, S 65632-2

 

Result ID Test Result Name Result LOINC Value
33840 Clozapine 6896-5
33841 Norclozapine 10992-6
33842 Clozapine+Norclozapine Total 12375-2