Hydroxyzine, Serum or Plasma
Also known as: Atarax®, Hyzine®, Vistaril®, Vistazine®
Use
Therapeutic drug management
Special Instructions
No special ordering instructions beyond standard specimen collection; trough level sampling recommended for most reproducible results.
Limitations
Turnaround time may vary due to confirmatory or reflex testing. Use of gel-barrier tubes may result in sample rejection. Specimen processing and timely separation critical to maintain sample integrity.
Methodology
Mass Spectrometry
Biomarkers
LOINC Codes
- 3686-3
- 3686-3
Result Turnaround Time
7-14 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
3 mL
Minimum Volume
0.6 mL
Container
Red-top tube or green-top (heparin) tube. Gel-barrier tubes are not recommended.
Collection Instructions
Separate serum or plasma from cells within two hours of venipuncture; submit 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, refrigerate or freeze.
Causes for Rejection
Gel-barrier tubes
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 12 days |
| Refrigerated | 12 days |
| Frozen | 13 days |