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Topiramate-8734

Test info

Test name:

Topiramate

Test number:

8734

Excellian order number:

LAB8734

Abbreviation:

TMX

Alternate names:

Topamax

Specimen

Specimen type:

Serum

Collection container:

Red serum vial/tube, 5 mL

Volume:

1.0 mL

Minimum volume:

0.4 mL

Processing instructions:

Allow sample to clot
Spin
Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collectio

Transport container:

False bottom plasma/serum transport vial/tube (AHL)

Alternate specimen type:

EDTA plasma
Heparin plasma

Alternate collection container:

Lavender (EDTA), 4mL

Dk green heparin (Li or Na), no gel

Alternate specimen volume:

1.0 mL

Alternate collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10

Alternate processing instructions:

Spin
Transfer plasma to a False bottom plasma/sreum transport vial/tube (AHL), labelled as plasma, within two (2) hours of sample collection

Alternate transport container:

False bottom plasma/serum transport vial/tube (AHL)

Transport and stability:

Refrigerated (preferred) - 7 days

Frozen - 1 month

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
Delay in transport
Improper storage temperature affecting results
Inappropriate timing of collection
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performance

Performing lab:

AHL - Chemistry: C

Days set up:

Daily

TAT:

1 day
STAT - 2 hours

Method:

Competitive Immunoassay

Clinical and Interpretive info

Reference ranges:

The proposed trough therapeutic range for seizure control is 2.0 - 25.0 µg/mL.

Patient response varies widely, particularly with co-medications and/or compromised renal function.

Billing

CPT codes:

80201

Tracking

Date created:

11/15/2010

Revised date:

03/09/2023

Review date:

03/02/2022