Posted Date
Effective Date
Update Type New Tests
Order Code UFNTL



Fentanyl, Urine, Qualitative Screen

Order Code:                  UFNTL

Fee Code:                     JA054 (CPT 80307)

LOINC:                         59673-4


The MLabs Chemistry Core Laboratory began offering a Fentanyl, Urine, Qualitative Screen by Immunoassay effective June 13, 2023. The ARK™ Fentanyl II Immunoassay will be performed on Roche Cobas C502 and is intended for the qualitative detection of fentanyl in human urine at a cutoff concentration of 1.0 ng/mL. Fentanyl screening by immunoassay may be performed to monitor compliance in patients with Fentanyl prescription (i.e., Actiq®, Duragesic®, and Sublimaze®), or to identify fentanyl exposure from unprescribed drugs. The immunoassay screen detects fentanyl, norfentanyl and select fentanyl analogs. Presumptive positive results obtained by immunoassay can be confirmed and quantified by LC-MS/MS (order code UFENL) if desired.


Collection Instructions: Collect random urine specimen. Send 5 mL (minimum 1 mL) in a plastic container; refrigerate.


Reference Range: Negative