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Test Code ZONMID Zonisamide

Collection Container

Red

Specimen Required

Serum

Other Acceptable Specimen Types

EDTA plasma

Specimen Volume

1.2 mL

Minimum Specimen Volume

0.4 mL

Transport Temperature

Refrigerate

Specimen Stability

Room temperature: 14 days, Refrigerated: 14 days, Frozen: 14
days

Reasons for Rejection

Hemolysis, collected in a gel barrier tube, not separated within
45 min of draw.

Methodology

LCMS

Turnaround Time

3 -7 days

CPT Code

80203

LOINC Code

29620-2

Patient Instructions

Trough levels are preferred. Draw immediately prior to next dose. Steady-state levels are reached within 5-15 days in patients that are on zonisamide monotherapy.