Complete Blood Count (CBC) Test: What This Common Blood Test Measures and Why Your Doctor May Order It
A confirmatory urine test that detects acrylfentanyl, a potent synthetic opioid, to identify drug exposure.
{"This test detects acrylfentanyl, a synthetic opioid much stronger than morphine","It uses urine sample to confirm acrylfentanyl exposure for clinical or forensic purposes","Acrylfentanyl is not a regulated pharmaceutical and is often abused recreationally","Positive results may indicate drug use and require clinical interpretation","The test helps healthcare providers assess exposure in emergency or monitoring situations"}
Key facts at a glance
- LOINC
- 93468-7
- Short code
- ACRYFU
- Synonyms
- Acrylfentanyl Ur Cfm-mCnc
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container (clean catch)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 18 years
- Method
- confirm
- CPT
- 80307
- SNOMED
- 8710006
- Specimen volume
- 10-30 mL
- Stability
- Room temperature: 24 hours; Refrigerated (2-8°C): 7 days; Frozen (-20°C or below): 30 days
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 48–168 hours
- Order
- routine
What is a complete blood count (CBC) and what can it tell your doctor about your overall health?
This test uses a confirmatory method (mass spectrometry) to detect acrylfentanyl and its metabolites in your urine. Acrylfentanyl (also called acryloylfentanyl) is a synthetic opioid analog of fentanyl. It is classified as a new psychoactive substance (NPS) and is not approved for medical use in most countries. The test is highly specific and accurate for identifying acrylfentanyl exposure.
How is a complete blood count performed, and what should you expect during the blood draw?
A urine sample is collected in a sterile container. The sample is then analyzed in a laboratory using mass spectrometry techniques, which can identify even small amounts of acrylfentanyl or its metabolites. This confirmatory method is more accurate than initial screening tests.
Why might your doctor order a complete blood count, and what symptoms or conditions can it help evaluate?
Your healthcare provider may order this test if: you show symptoms of opioid overdose or poisoning, there is suspicion of synthetic opioid exposure, you are in a drug monitoring program, or for forensic/legal purposes. It may also be used in emergency situations when standard opioid tests are negative but clinical symptoms suggest opioid use.
Reference range
Not Detected (Cutoff: 0.5 ng/mL)N/A
Patient should provide a clean catch urine specimen. Avoid excessive fluid intake before collection that may dilute the specimen. Inform patient of controlled substance testing and obtain appropriate consent. Collection should be observed or documented to prevent adulteration.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Acrylfentanyl is approximately 10-15 times more potent than morphine and carries high risk of overdose and death. This test helps clinicians identify exposure to this dangerous substance, especially in cases where routine drug screens are negative. Positive results can guide treatment decisions in emergency settings, support addiction monitoring, and provide evidence for forensic investigations. Early detection is crucial due to the high potency and risk of respiratory depression associated with synthetic opioids.
Frequently asked questions
Is acrylfentanyl the same as fentanyl?
How long does acrylfentanyl stay in urine?
Will this test show if I am addicted?
Do I need to prepare for this test?
Sources
- 1
- 2
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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