Test Code FENT Fentanyl, Serum
Reporting Name
Fentanyl and Metabolites, SUseful For
Monitoring fentanyl therapy
Performing Laboratory

Specimen Type
Serum RedSpecimen Required
Collection Container/Tube: Red top (serum gel tubes are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 2.3 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial within 2 hours of collection.
Specimen Minimum Volume
1.25 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum Red | Frozen (preferred) | 28 days | |
Refrigerated | 14 days | ||
Ambient | 72 hours |
Reference Values
Not applicable
Day(s) and Time(s) Performed
Friday, Varies
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
80354
G0480 (if appropriate)
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
FENTS | Fentanyl and Metabolites, S | In Process |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
31829 | Norfentanyl | 11074-2 |
31830 | Fentanyl | 3636-8 |
31832 | Chain of Custody | 77202-0 |
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.