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Orderable Name FLUOX Fluoxetine, Serum

Additional Codes

CNE Order Code: Fluoxetine

Useful For

Monitoring serum concentration of fluoxetine during therapy

 

Evaluating potential toxicity

 

Evaluating patient compliance

Specimen Type

Serum Red


Specimen Required


Collection Container/Tube: Red top (serum gel/SST are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Draw blood immediately before the next scheduled dose (trough).

2. Centrifuge and aliquot serum into plastic vial within 2 hours of collection.


Specimen Minimum Volume

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

CPT Code Information

80299

Report Available

1 to 8 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Method 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.