Casandra
Casandra Test Code LC48110Version 1 (DRAFT)
Performing Lab
Promethazine, Serum or Plasma
Also known as: Anergan®, Phenadoz®, Phenergan®, Promethegan®
Clinical Use
Order TestUse
Therapeutic drug management
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Mass Spectrometry
Biomarkers
Promethazine
AnalytePromethazine
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
LOINC Codes
Order Codes
- 3988-3 - Promethazine SerPl-mCnc
Result Codes
- 3988-3 - Promethazine SerPl-mCnc
Result Turnaround Time
7-10 days
Related Documents
For more information, please review the documents below
Specimen Requirements
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 serum or plasma in a plastic transport tube.
Patient Preparation
Trough levels are most reproducible.
Storage Instructions
Submission/transport (<3 days): Room temperature; beyond three days refrigerated or frozen.
Causes for Rejection
Gel‑barrier tubes
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 13 days |
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