Fentanyl Screen, Random, Urine

Casandra

Casandra Test Code MC62681Version 1 (DRAFT)

Performing Lab

Lab Mayo Clinic LabLab Test ID FENSCPT Code 80307

Fentanyl Screen, Random, Urine

Clinical Use

Use

Screening for drug abuse or use involving fentanyl. The assay is designed to have a high true-negative rate under CLIA conditions; however, as with all immunoassays, false positives may occur due to cross-reactivity and false negatives can occur due to antibody specificity limitations. The screen utilizes a competitive homogeneous enzyme immunoassay to detect fentanyl at a cutoff of 2 ng/mL in urine. ([mayocliniclabs.com](https://www.mayocliniclabs.com/test-catalog/overview/63060?utm_source=openai))

Special Instructions

Order a Therapeutics Test Request form (T831) if not ordering electronically. If urine creatinine is required or sample adulteration is suspected, order Adult / Adulterants Survey, Random, Urine concurrently. ([mayocliniclabs.com](https://www.mayocliniclabs.com/test-catalog/overview/63060?utm_source=openai))

Limitations

This is a screening immunoassay, not a definitive confirmatory test. As such, it may produce false-positive results due to cross-reactivity with structurally similar compounds and false-negative results due to limited antibody cross-reactivity with certain fentanyl analogs. No confirmation is automatically performed. ([mayocliniclabs.com](https://www.mayocliniclabs.com/test-catalog/overview/63060?utm_source=openai))

Test Details