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Test Code FENTS Fentanyl, Serum

Additional Codes

  • Expanse Test Name: Fentanyl and Metabolite
  • Medinet Ref Code:FENTS
  • OV Code:REF*FENTS

Reporting Name

Fentanyl and Metabolites, S

Useful For

Monitoring fentanyl therapy

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum Red


Specimen 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: 2.3 mL

Collection Instructions: Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.


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) Performed

Tuesday, Thursday

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

80354

G0480 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FENTS Fentanyl and Metabolites, S 81275-0

 

Result ID Test Result Name Result LOINC Value
31829 Norfentanyl 11074-2
31830 Fentanyl 3636-8
31832 Chain of Custody 77202-0

Report Available

2 to 7 days

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.