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HelpTest ID FLUOX Fluoxetine, Serum
Useful For
Monitoring serum concentration of fluoxetine during therapy
Evaluating potential toxicity
Evaluating patient compliance
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Serum RedSpecimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Red top (serum gel/SST are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL Serum
Collection Instructions:
1. Draw blood immediately before the next scheduled dose (trough).
2. Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum Red | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Reference Values
Fluoxetine + Norfluoxetine: 120-500 ng/mL
Day(s) Performed
Wednesday
CPT Code Information
80299
Report Available
1 to 8 daysReject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.