3mefentanylurcfmmcnc
This test checks for the presence of 3-methylfentanyl, a synthetic opioid, in your urine sample.
{"3-Methylfentanyl is a powerful synthetic opioid similar to fentanyl","This urine test detects whether the substance is present in your system","Results are typically reported as positive or negative","The test is often used in pain management, addiction treatment, or forensic settings"}
Key facts at a glance
- LOINC
- 93465-3
- Short code
- 3-MFENT-U
- Synonyms
- 3-Me-fentanyl Ur Cfm-mCnc
- Category
- chemistry
- Sample
- urine
- Container
- Clean, dry, sterile urine container (plastic or glass)
- Units
- N/A
- Ref low
- 0
- Ref high
- 0.5
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 12 years
- Method
- confirm
- CPT
- 80307
- SNOMED
- 1224610003
- Specimen volume
- Minimum 10 mL, preferred 20-30 mL
- Stability
- Room temperature: 7 days; Refrigerated (2-8°C): 14 days; Frozen (-20°C or below): 30 days. Protect from light.
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 48–72 hours
- Order
- routine
What is this test?
The 3-Methylfentanyl urine test is a confirmatory laboratory test that detects the presence of 3-methylfentanyl in your urine. 3-Methylfentanyl is a synthetic opioid analgesic that is chemically related to fentanyl. It is classified as a Schedule I controlled substance in the United States due to its high potency and potential for abuse and overdose.
How is the test performed?
A urine sample is collected from you in a clean container. The sample is then sent to a laboratory where it undergoes confirmatory testing using specialized analytical methods such as mass spectrometry. This confirmatory method is highly specific and accurate in identifying the exact substance present in your urine.
What do the results mean?
Your test results will typically be reported as either 'Positive' (present) or 'Negative' (not detected). A positive result indicates that 3-methylfentanyl was detected in your urine sample. A negative result means the substance was not detected at the time of testing. It is important to note that this test has a specific detection window and may not detect use that occurred several days before the test.
Are there any risks or side effects?
There are no medical risks associated with providing a urine sample. The test itself is purely diagnostic and does not involve any exposure to the substance being tested.
Reference range
Not Detected - Cutoff: 0.5 ng/mL (or method-specific cutoff)N/A
No special preparation required. Patient should provide a clean catch urine sample. Inform the laboratory of any medications or supplements being taken.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
How long does 3-methylfentanyl stay in urine?
Do I need to fast before this test?
Can a positive result affect my treatment?
Will this test show other opioids or drugs?
Sources
- 1
- 2
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy