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Cocaine concentration in urine

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

This test measures the presence of cocaine or its metabolites in your urine to detect recent use.

Quick summary

["A simple urine test to check for cocaine use, often used in medical, legal, or workplace settings."]

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

Key facts at a glance

LOINC
47400-7
Short code
Cocaine+BZE Ur Ql Cfm
Synonyms
Cocaine+BZE Ur Ql Cfm
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
confirm
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

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms of cocaine use, such as rapid heart rate, confusion, or if you’ve been exposed to cocaine in a medical, legal, or occupational context. It can also be part of a routine screening, especially in settings like substance abuse programs or pre-employment health checks.

What to Expect Before the Test

No special preparation is needed. You’ll provide a urine sample in a private area. If you’re unsure about recent substance use, inform your provider—some substances can affect test results.

What the Results Mean

Positive results indicate recent cocaine use, while negative results suggest it hasn’t been detected in your system. False positives can occur with certain medications or other substances, so follow-up testing may be needed for confirmation.

Common Uses and Limitations

This test is commonly used for screening but isn’t always definitive. It can’t distinguish between different types of cocaine or measure how much was used. Results should be interpreted by a healthcare provider in the context of your overall health and symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Urine Cocaine Screen

Frequently asked questions

What does a positive result mean?
A positive result suggests recent cocaine exposure, which may require medical evaluation or support services. It doesn’t indicate addiction or harm without further context. Your provider will discuss next steps based on your situation.
How long does it take to get results?
Results are typically available within 24 to 48 hours, depending on lab processing times. Follow-up instructions from your provider will guide when to expect them.
Can I drink water before the test?
Yes, you can drink water, but avoid excessive fluid intake to ensure a proper urine sample. If you’re unsure, ask your provider for guidance tailored to your situation.
  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