Cyclobenzaprine, Serum or Plasma
Also known as: Amrix®, Fexmid®, Flexeril®
Use
Therapeutic drug management
Special Instructions
Trough levels are most reproducible. Gel‑barrier tubes are not recommended.
Limitations
Additional time may be needed for confirmatory or reflex tests. Gel‑barrier tubes are cause for specimen rejection. Reference range and interpretation depend on timing; trough sampling is recommended.
Methodology
Mass Spectrometry
Biomarkers
LOINC Codes
- 6797-5
Result Turnaround Time
5-10 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
2 mL
Minimum Volume
0.5 mL
Container
Red‑top tube or green‑top (heparin) tube. Gel‑barrier tubes are not recommended.
Collection Instructions
Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.
Patient Preparation
Trough levels are most reproducible.
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Causes for Rejection
Gel‑barrier tubes
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | <3 days at room temperature |
| Refrigerated | Beyond three days: refrigerated |
| Frozen | Beyond three days: frozen |