Zonisamide [37852Z]

Test Code
ZNSM

CPT Codes
80203

Preferred Specimen
1 mL serum collected in a red-top tube (no gel)

Minimum Volume
0.5 mL

Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top), or sodium heparin (green-top) tube

Transport Container
Plastic, screw-cap vial

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: 24 hours
Refrigerated: 14 days
Frozen: 45 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gel barrier/Serum separator tube (SST®)

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

Reference Range
10.0 - 40.0 mcg/mL

Clinical Significance
Zonisamide is commonly used as an adjunct together with other conventional anticonvulsants. As multiple drugs are administered, it is important to monitor its level to optimize therapeutic effects, to assure compliance, and to avoid toxicity.

Performing Laboratory
Quest Diagnostics Nichols Institute, Valencia
27027 Tourney Road
Valencia, CA 91355-5386




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.