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Zonisamide, Serum

Additional Codes

Epic Ordering Code LAB3041955
NBS code LBC11815
Service code 37147

Reporting Name

Zonisamide, S

Specimen Type

Serum Red


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Red top (serum gel/SST is not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.


National University Hospital-Singapore Note:

NUH Outreach Laboratories:
Specimen Requirements
Submit the following:
Container: Red Top
Processing Requirements
Centrifuge and aliquot serum into a Mayo plastic tube.
Specimen type: Serum
Volume: 1 mL
Storage/transport requirements: Refrigerated

Forms

If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

-Neurology Specialty Testing Client Test Request (T732)

-Therapeutics Test Request (T831)

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Red Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK
 

Method Name

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

Day(s) Performed

Monday through Saturday

Report Available

Same day/1 to 3 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

Reference Values

10-40 mcg/mL

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Monitoring zonisamide therapy; recommended for all patients to ensure appropriate dosing

 

Assessing medication compliance

CPT Code Information

80203

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ZONI Zonisamide, S 29620-2

 

Result ID Test Result Name Result LOINC Value
83685 Zonisamide, S 29620-2

Secondary ID

83685

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.
National University Hospital-Singapore Additional Information:

Last updated 17/08/2026