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Pathology and Laboratory Medicine
Test Catalogue



​Ordering Recommendation
  • ​​Collect prior to morning dose
  • Please indicate date and time of last dose and date and time of specimen collection

​Specimen Requirements​

  • ​Plasma
​Required Volume
  • ​Optimal Volume: Full 4.5 mL collection tube
  • Minimum Volume: 2 mL plasma
    (Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
  • ​Centrifuge and aliquot plasma as soon as possible
Grounds for Rejection​

Testing Information​ ​

  • Shipped weekly
Testing Site​
  • ​Referred out by St. Paul’s Hospital Laboratory to Dynacare (Ontario)
Results Reporting​
  • 6 days turn around time by testing laboratory
  • Reported as Fluoxetine and Norfluoxetine

​Additional Comments
  • ​This test is used to monitor plasma concentration of fluoxetine during therapy, evaluate therapeutic efficacy, toxicity, and patient compliance
Alternate Test Names​
  • Prozac
  • Norfluoxetine
SHR LIS Test Code​
  • ​FLX (For Laboratory Use Only)


​​If you choose to print this information, it is valid only on date of print.

Laboratory Controlled Document LSM-647 v3

Last Modified: Tuesday, January 22, 2019 |
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