Synthetic Opioid Screening in Urine
This test checks for the presence of synthetic opioids, such as fentanyl or its analogs, in your urine. It helps determine if these substances were used recently.
["This screening may be used to assess substance use, monitor treatment, or investigate suspected misuse."]
Key facts at a glance
- LOINC
- 93474-5
- Short code
- Synthetic opioids pnl Ur Cfm
- Synonyms
- Synthetic opioids pnl Ur Cfm
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- confirm
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test if you have symptoms of opioid use, such as drowsiness, confusion, or respiratory issues. It could also be part of a routine check for someone in recovery, under supervision, or suspected of substance misuse. Some employers or legal situations may require this screening as well.
What to Expect Before the Test
No special preparation is needed. You’ll provide a urine sample in a private area, similar to other urine tests. Wear comfortable clothing and plan to spend about 10–15 minutes at the lab or collection site.
What Happens During the Test
The test involves collecting a small amount of urine. The sample is analyzed using a highly sensitive method to detect synthetic opioids, which may appear in your system even after recent use. Results are typically available within hours or a few days, depending on the lab’s process.
What the Results Mean
A positive result means synthetic opioids were found in your urine. A negative result indicates none were detected. The presence of these substances may require further evaluation by a healthcare provider to understand the context, such as treatment needs or legal implications.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Synthetic opioids like fentanyl are potent and often misused, leading to severe health risks, including overdose. This test helps identify recent use, which can guide treatment decisions, such as detoxification programs or adjustments to medication. It may also be used in legal or workplace settings to assess compliance or safety.
Short name
Urine Synthetic Opioid Screen
Frequently asked questions
How long does it take to get results?
Can I drink water before the test?
What if I have a false positive?
Sources
- 1
- 2Lab Tests OnlineSource
- 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