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HelpTest Code LAB498 Topiramate
Clinical System Name
Topiramate Level
Synonyms
Topamax
Topiramate
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST, Gold Microtainer, Lt. Green/Li Heparin Microtainer, Dark Green/Sodium Heparin, Red
Preferred Vol: 1 mL
Minimum Vol: 1 mL
Note: Volume can be shared with Gabapentin, Lacosamide, Lamotrigine, Levetiracetam (Keppra), Oxcarbazepine, Rufinamide, Zonisamide.
Processing Instructions
Reject due to:
Spin: Y
Aliquot: Y
Temp: 2-8 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, Zonisamide.
Off-site collection: Spin blood; refrigerate serum/plasma in plastic aliquot tube.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| serum/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 | T, Th, Su (run overnight, result available next day) | 2 - 4 d |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem West
Phone Number: 206-987-2617
CPT Codes
80201
Methodology
Method: LC/MS/MS
Analytical Volume: 0.3 mL serum or plasma
Limitations:
Reference Range
Therapeutic range: 10 - 20 mcg/mL