Preferred test to follow-up presumptive results. For general screening, Fentanyl, Urine Screen with Reflex to Quantitation (2012284) is preferred.
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Transfer 4 mL urine with no additives or preservatives to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Specimens exposed to repeated freeze/thaw cycles.
Ambient: 1 month; Refrigerated: 1 month; Frozen: 9 months
|Drugs Covered||Cutoff Concentrations|
Methodology: Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Positive cutoff: 1.0 ng/mL
For medical purposes only; not valid for forensic use.
The absence of expected drug(s) and/or drug metabolite(s) may indicate non-compliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, diluted/adulterated urine, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.
Laboratory Developed Test (LDT)
80354 (Alt code: G0480)
|Component Test Code*||Component Chart Name||LOINC|
|2005886||Fentanyl, Urn, Quant||3637-6|
|2005887||Norfentanyl, Urn, Quant||11075-9|
- fentanyl and norfentanyl urine concentrations
- Fentanyl, Quantitative, with medMATCH, Urine