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Test Code UFNT Urine Fentanyl Screen

Additional Codes


Performing Laboratory

Bronson Laboratory Services-Chemistry

Reference Values


Specimen Transport Temperature


Specimen Requirements

Specimen Type: Urine, random

Container/Tube: Plastic urine

Specimen Volume: 5 mL

Collection Instructions: No

Specimen Stability

Refrigerated - 5 days



This assay detects Fentanyl at 1 ng/ml and higher. Butyryl and Acetyl Fentanyl analogues are also detectable. The norfentanyl metabolite is not detected.

Note: External studies have shown that labetalol and trazadone may cause false positives with this test.



Drug screening performed at Bronson Laboratory Services is for medical purposes only. No chain of custody, or specimen adulteration testing is performed.   All positive results are presumptive.  Presumptive Positive means that this screening method is positive. A more specific alternative method must be used in order to obtain a  confirmed analytical result. Confirmatory testing is available on request through our reference lab.  Clinical consideration and professional judgment should b e applied to any drug of abuse test result, particularly with presumptive positive results.


If employment/legal drug screening is required, contact ProHealth Management Services at 269-341-7547.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding