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Cocaine concentration in urine (qualitative screening)

Published: August 9, 2026Updated: August 16, 2026

This test detects the presence of cocaine or its metabolites in your urine to screen for recent use.

Quick summary

["A simple urine test to check for recent cocaine exposure."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
52953-7
Short code
Cocaine Ur-sCnc
Synonyms
Cocaine Ur-sCnc
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What Does This Test Measure?

This test screens for cocaine metabolites, including benzoylecgonine, which are the body’s breakdown products of cocaine. It helps identify if cocaine was recently consumed, typically within the past few days.

Why Might Your Doctor Order This Test?

Your doctor may recommend this test if you have symptoms of cocaine use (e.g., rapid heartbeat, anxiety, or mood changes), if you’re under suspicion for substance use, or as part of a routine screening in certain settings (e.g., workplace, legal proceedings).

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. Avoiding certain medications or substances (like some painkillers) before testing may be advised by your provider.

What the Results Mean

A positive result indicates the presence of cocaine metabolites, suggesting recent use. A negative result means no detectable metabolites were found in your sample. Results alone don’t confirm use—other factors (like timing, diet, or medical conditions) can affect results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Urine cocaine screen

Frequently asked questions

How long does cocaine stay in your system?
Cocaine metabolites can be detected in urine for about 2–3 days after use, but some people may test positive longer depending on factors like metabolism, hydration, and how much was consumed.
Can false positives or negatives happen?
Yes, false positives can occur due to certain medications, over-the-counter drugs, or even food additives. False negatives are less common but may happen if the test isn’t timed correctly or if the sample isn’t handled properly.
Does this test show how much cocaine you used?
No, this test only confirms the presence of cocaine metabolites—not the exact amount used. If a higher dose or frequency of use is suspected, additional testing (like a quantitative urine drug screen) may be needed.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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