3ohbzeurcfmmcnc
This test detects a specific metabolite of cocaine in urine to confirm recent cocaine use.
{"Detects 3-hydroxybenzoylecgonine, a breakdown product of cocaine","Used to confirm cocaine use when screening tests are positive","Urine sample can detect use within 2-4 days after consumption","Results are typically reported as positive or negative","This is a confirmatory test with high accuracy"}
Key facts at a glance
- LOINC
- 50594-1
- Short code
- 3-OH-BE
- Synonyms
- 3OH-BZE Ur Cfm-mCnc
- Category
- chemistry
- Sample
- urine
- Container
- Clean, sterile, labeled urine collection container
- Units
- N/A
- Ref high
- 100
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 18 years
- Method
- confirm
- CPT
- 80307
- SNOMED
- 398936007
- Specimen volume
- 10-30 mL preferred
- Stability
- Room temperature: 5-7 days; Refrigerated (2-8°C): 30 days; Frozen (-20°C or below): 90+ days
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 24–72 hours
- Order
- routine
What is this test?
This test looks for 3-hydroxybenzoylecgonine in your urine. This substance is produced when your body processes (metabolizes) cocaine. It is a specific marker that confirms cocaine use, as it is not produced by any other substances or normal body processes.
How is the test performed?
A urine sample is collected in a clean container. The sample is then sent to a laboratory where it is analyzed using specialized equipment called mass spectrometry, which can precisely identify and measure the amount of cocaine metabolite present. This method is much more accurate than initial screening tests.
What do the results mean?
Results are typically reported as either positive (present) or negative (not present). A positive result indicates recent cocaine use, typically within the past 2-4 days. A negative result means no cocaine use was detected during that time window. Your healthcare provider will explain your specific results and what they mean for your situation.
Are there any special instructions?
For this test, you will need to provide a urine sample. It is important to follow any specific instructions given by your healthcare provider or the testing facility. You should inform your provider about any medications or supplements you are taking, as certain substances may potentially interfere with test results.
Reference range
Negative/Not Detected (cutoff: 100 ng/mL)N/A
No special preparation required. Patient should provide a clean catch urine sample. Inform laboratory of any medications or substances recently consumed.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings2
Frequently asked questions
How long does cocaine stay detectable in urine?
Can a positive result occur from secondhand exposure?
Will certain foods or medications affect this test?
How long will it take to get results?
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