Casandra
Casandra Test Code QD42553Version 1 (DRAFT)
Performing Lab
Quetiapine, Serum/Plasma
Also known as: Seroquel®
Clinical Use
Order TestUse
Therapeutic drug monitoring of quetiapine levels to assess medication compliance or potential toxicity, used in clinical management of patients maintained on quetiapine therapy.
Special Instructions
Collect specimen as a trough level prior to next dose. Reflex or profile components may be ordered separately; additional charges may apply. Performing laboratory is Quest Diagnostics Nichols Institute, Chantilly, VA.
Limitations
Not provided.
Test Details
Methodology
Mass Spectrometry
Biomarkers
Quetiapine
AnalyteQuetiapine • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL
Minimum Volume
0.4 mL
Container
red-top tube (no gel)
Collection Instructions
Collect as trough prior to next dose. Collect serum and remove from cells.
Causes for Rejection
Gel barrier tubes • Serum separator tubes (SST®)
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 21 days |
| Refrigerated | 21 days |
| Frozen | 21 days |