Posted Date
Effective Date
Test Name Fentanyl, Serum
Update Type Test Down or Delayed
Order Code FENTS
Referral Laboratory Mayo Medical Laboratories



Fentanyl and Metabolites, Serum

Order Code:                  FENTS

Fee Code:                     21581

Reference Laboratory:   Mayo FENTS


Mayo Clinic Laboratories Fentanyl and Metabolites, Serum, assay is down effective December 14, 2022, due to assay performance issues.  Requests for this test will be forwarded to NMS Labs test ID 2079SP until further notice.