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Test Code Zonisamide Zonisamide

Clinical System Name

Zonisamide Level

Synonyms

Zonegran level

Sample Requirements

Specimen: Whole blood

Container(s): Gold SST, Red, Gold Microtainer, Lt. Green/Li Heparin Microtainer, Dark Green/Sodium Heparin

Preferred Vol: 2 mL

Minimum Vol: 1 mL

 

Note: Trough levels are preferred. Volume can be shared with Gabapentin, Lacosamide, Lamotrigine, Levetiracetam (Keppra), Oxcarbazepine, Rufinamide, Topiramate.

 

Processing Instructions

Reject due to: Moderate hemolysis.

Spin: Y

Aliquot: Y

Temp: - 20 C

Storage location: Refrigerate serum or plasma with labels in CPA refrigerator, FrigE rack. May be stored in same tube with Gabapentin, Lacosamide, Lamotrigine, Levetiracetam (Keppra), Oxcarbazepine, Rufinamide, Topiramate.

Off-site collection: Spin blood; refrigerate serum/plasma in plastic aliquot tube.

Stability

Specimen Type Temperature Time
serum or plasma on gel separator Room temp 2 h
separated serum or plasma Room temp 2 d
  Refrigerated 6 w
  Frozen 3 m

 

Availability

STAT Performed TAT
N M, W, F 1 - 3 d

 

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Chemistry

Location: Chem West

Phone Number: 206-987-2617

Reference Range

Therapeutic range: 15 - 30 microg/mL

Methodology

Method: LC/MS/MS

Analytical Volume: 0.3 mL serum or plasma

Limitations:

CPT Codes

80203

Critical Values

> 45 microg/mL