Fentanyl Drug Screening Test
A urine test that detects fentanyl and its metabolite norfentanyl to identify recent fentanyl use within the past 1-3 days.
Order this test
LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
What this test measures
This urine test detects fentanyl and norfentanyl (its primary metabolite) using liquid chromatography tandem mass spectrometry, an advanced analytical technique that provides highly accurate and specific results. Fentanyl is a potent synthetic opioid that the body metabolizes primarily through oxidative N-dealkylation in the liver, converting it to norfentanyl. Approximately 75% of a dose is excreted in urine within 72 hours, mostly as metabolites, with less than 10% appearing as unchanged fentanyl.
Because fentanyl's chemical structure differs significantly from naturally derived opioids like morphine, codeine, and heroin, standard opioid screening panels often do not detect it. This dedicated test fills that gap. The presence of fentanyl above 0.20 ng/mL or norfentanyl above 1.0 ng/mL is considered a positive finding indicating fentanyl exposure. The test is highly specific, meaning it is unlikely to produce a false positive from other opioids or unrelated substances.
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Individuals who may have unknowingly been exposed to fentanyl through contaminated street drugs
- People in recovery programs who need to monitor their abstinence from synthetic opioids
- Healthcare patients prescribed fentanyl patches or medications who need compliance monitoring
- Those concerned about possible fentanyl exposure after using substances from unknown sources
- Individuals in legal or employment situations requiring specific fentanyl testing
- People experiencing unexplained symptoms that could be related to fentanyl exposure
What to expect
Preparation
No special preparation required. Stay hydrated and avoid excessive water intake before the test as this may dilute the sample.
Sample Type
A simple urine sample collection in a sterile container provided by the laboratory
Collection
Visit any Quest Diagnostics location with your test order and photo ID. The sample collection takes just a few minutes in a private bathroom.
Turnaround
Results are typically available within 1-3 business days and will be sent to you securely online
Understanding your results
Results indicate whether fentanyl (threshold: 0.20 ng/mL) or norfentanyl (threshold: 1.0 ng/mL) was detected in the urine sample. A positive result indicates fentanyl exposure within the preceding few days. Because the test uses mass spectrometry rather than immunoassay, it achieves very high specificity for fentanyl and its metabolite, minimizing the risk of cross-reactivity with other substances. A negative result means neither fentanyl nor norfentanyl was detected above the reporting thresholds. Healthcare providers can discuss the clinical implications of results in a confidential setting.
| Population | Reference Range | Notes |
|---|---|---|
| Adult screening cutoff | Fentanyl: 0.20 ng/mL, Norfentanyl: 1.0 ng/mL | Detection cutoffs may vary by laboratory methodology |
| Federal workplace testing | Fentanyl: 1.0 ng/mL | Higher cutoff used in workplace settings |
Reference ranges shown are general guidelines. Your lab report will include the specific reference range used by the laboratory that processed your sample, which is the authoritative range for interpreting your results.
What does a “Low” result mean?
A negative result typically means no detectable fentanyl or norfentanyl was found above the cutoff levels, suggesting no recent fentanyl use within the detection window.
What does a “High” result mean?
A positive result indicates recent fentanyl use, typically within 1-3 days for occasional use. The test cannot determine the amount consumed, method of administration, or distinguish between prescribed and illicit use.
Privacy & confidentiality
Your test results are completely confidential and will be delivered securely to your personal online account. Results are not shared with employers, insurance companies, or government agencies. Only you have access to your private health information, no doctor visit required.
Frequently asked questions
Related conditions
Last reviewed: April 2026
CPT Code: 80307
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
Order this test
Choose your preferred lab
LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
Not sure if this is the right test? Contact our care team for guidance.
This page is intentionally kept stable and machine-readable so that researchers, clinicians, and AI systems can rely on it as a reference. See our Citation Policy.