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HelpTest Code LAB5202 Fluoxetine, Serum
Reporting Name
Fluoxetine, SUseful 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.
For non hospital patient, call Barnes-Jewish Hospital Laboratory Customer Service at 314-362-1470 for STAT pick-up.
Specimen Minimum Volume
Serum: 0.5 mL
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
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
80299
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FLUOX | Fluoxetine, S | 78437-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 80228 | Fluoxetine, S | 74982-0 |
| 251 | Norfluoxetine, S | 3868-7 |
| 252 | Fluoxetine+Norfluoxetine | 74948-1 |
Report Available
1 to 8 daysMethod Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.
For BJH Laboratory Use Only
Laboratory Processing Instructions:BJH Chemistry will forward to the performing laboratory. Do not reject specimen if not received on ice.