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Clozapine-13310

Test info

Test name:

Clozapine

Test number:

13310

Excellian order number:

LAB13310

Abbreviation:

CLZ

Alternate names:

Clozaril
Neurontin

Useful for:

Therapeutic drug management

Specimen

Specimen type:

Serum

Collection container:

Red serum vial/tube, 5 mL

Volume:

1.0 mL

Minimum volume:

0.2 mL

Processing instructions:

Allow sample to clot
Spin within two (2) hours of sample collection
Transfer serum to a Serum/plasma transfer vial/tube (MedTox), labelled as serum

Transport container:

Serum/plasma transfer vial/tube (MedTox)

Alternate specimen type:

Heparin plasma

Alternate collection container:

Dk green heparin (Li or Na), no gel

Alternate collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting

Alternate processing instructions:

Spin within two (2) hours of sample collection
Transfer plasma to a Serum/plasma transfer vial/tube (MedTox), labelled as the appropriate plasma type

Transport and stability:

Refrigerated (preferred)

Ambient (OK) - 3 days

Frozen (OK)

Reason for rejection:

Gel-barrier tubes are not recommended

Performance

Performing lab:

MedTox Laboratories (54): R-MX

Days set up:

Tu - Su

TAT:

3 - 4 days

Method:

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Clinical and Interpretive info

Reference ranges:

Clozapine: 350 - 600 ng/mL

Clozapine & Norclozapine (combined total): >450 ng/mL

Billing

CPT codes:

80159

Tracking

Date created:

03/06/2019

Revised date:

12/28/2023

Review date:

12/28/2023