Casandra
Casandra Test Code QD29299Version 1 (DRAFT)
Performing Lab
Fluoxetine
Clinical Use
Order TestUse
Fluoxetine is an antidepressant drug also used in the treatment of bulimia nervosa and obsessive‑compulsive disorder. Therapeutic drug monitoring of fluoxetine, norfluoxetine, and total levels is clinically useful to optimize dosing and avoid toxicity (as indicated in Quest’s documentation).
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Mass Spectrometry
Biomarkers
Fluoxetine
AnalyteFluoxetine • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Norfluoxetine
AnalyteNorfluoxetine • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Total
AnalyteTotal • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
3-6 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
red‑top tube (no gel)
Collection Instructions
Do not use gel barrier/serum separator tubes.
Patient Preparation
Collect at steady‑state trough concentration. Specimen should be collected >12 hours after dose.
Causes for Rejection
Gross hemolysis; gel barrier/serum separator tube (SST)
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 5 days |
| Frozen | 30 days |