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Synonyms
- Onfi®
Test Includes
Clobazam; desmethylclobazam
Expected Turnaround Time
4 - 10 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Specimen Requirements
Specimen
Serum or plasma
Volume
1 mL
Minimum Volume
0.5 mL
Container
Red-top tube or green-top (heparin) tube. Gel-barrier tubes are not recommended.
Collection
Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen. Specimen is stable for nine days at room temperature, refrigerated, and frozen.
Patient Preparation
Trough levels are most reproducible.
Causes for Rejection
Gel-barrier tubes
Test Details
Use
Therapeutic drug management
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Reference Interval
Clobazam: 30−300 ng/mL; Desmethylclobazam: 300−3000 ng/mL
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 790500 | Clobazam (ONFI) | 79408-1 | 790534 | Clobazam | ng/mL | 3487-6 |
| 790500 | Clobazam (ONFI) | 79408-1 | 790535 | Desmethylclobazam | ng/mL | 35107-2 |
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The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf