Posted Date
Effective Date
Test Name Clozapine
Update Type Reference range changed
CPT Code 80159
Order Code CLOZ
Referral Laboratory Mayo Medical Laboratories

Effective June 3, 2020, MLabs has changed the reference values for Clozapine (CLOZ) testing via Mayo Medical Laboratories. See below

 

Current Reference Value

 

New Reference Value

Clozapine Therapeutic range: 350-600 ng/mL

 

Clozapine Therapeutic range: 350-600 ng/mL

Clozapine + Norclozapine

Therapeutic range: >450 ng/mL

 

Norclozapine

Not well established

 

 

Clozapine + Norclozapine

Not well established