ng/ml

Cut-Off Levels

Rapid Urine Test: 1*, 5**, 10 ng/mL

Rapid Oral Fluid Test: 0.5 ng/mL

**CLIA-Waived Calibrated to Norfentanyl / *CLIA-Waived

WOD

Window of Detection Times

Urine Specimen: 1 – 3 Days

Rapid Oral Fluid Test: 48 Hours

What is Fentanyl?

Fentanyl is a potent synthetic opioid originally developed for medical use in severe pain management, such as post-surgical care, cancer pain, and end-of-life treatment. In clinical settings, fentanyl is administered in forms like transdermal patches, lozenges, injections, and nasal sprays. Even in its legitimate pharmaceutical form, fentanyl is 50–100 times more potent than morphine, making dosage control critical and misuse extremely dangerous.

Illicit fentanyl, now widespread in the drug supply, is produced unlawfully in powder, tablet, or counterfeit pill form. It is often mixed with heroin, cocaine, or methamphetamine—or pressed into pills made to resemble legitimate medications—without the user’s knowledge. This extreme potency and unpredictable contamination make illicit fentanyl a leading cause of overdose deaths. It can be snorted, smoked, ingested, or injected, and even tiny dosing errors can be fatal due to rapid respiratory depression.

Because fentanyl appears in so many adulterated street drugs, its detection is a major priority for workplaces (particularly safety-sensitive roles), courts, treatment programs, and community health initiatives. Rapid toxicology tests are increasingly incorporating fentanyl-specific assays to identify exposure early and support life-saving interventions.

Effects:

  • Extreme pain relief

  • Profound sedation or drowsiness

  • Euphoria followed by heavy “nodding”

  • Slowed breathing (respiratory depression)

  • Constricted “pinpoint” pupils

  • Nausea or vomiting

  • Confusion or disorientation

  • Severe drowsiness leading to unconsciousness

  • High risk of dependence and withdrawal

  • Overdose that can rapidly lead to respiratory arrest and death

Commons Slang Terms:

  • Fenty

  • Fuff

  • Fetty

  • Apache

  • TNT

  • China White (sometimes used, though historically refers to other opioids)

  • Dance Fever

  • Goodfella

Legal Status:

Fentanyl is classified as a Schedule II controlled substance in the United States, indicating legitimate medical uses but an extremely high potential for abuse, addiction, and overdose. Because illicit fentanyl is a major driver of opioid-related fatalities, its detection has become a high-priority analyte in toxicology programs.

For point-of-care rapid testing, fentanyl’s legal and public-health significance has led many employers, government agencies, treatment centers, and community programs to include fentanyl panels even when traditional opioid screens are already in place. Standard opiate immunoassays do not reliably detect fentanyl, so a fentanyl-specific test is necessary to identify exposure.

In regulated or safety-sensitive environments—such as public safety, healthcare, transportation, and government-supervised programs—fentanyl screening supports risk management, compliance, and early intervention. Positive rapid screens generally require confirmatory laboratory testing due to the drug’s medical availability and the serious consequences associated with false positives. Its legal status and prevalence make fentanyl one of the most critical targets in modern rapid toxicology testing.

Screening Options:

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