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Cocaine metabolite concentration (urine)

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

This test checks for the presence of cocaine metabolites in your urine, often used to detect recent cocaine use.

Quick summary

["Detects recent cocaine exposure through urine analysis"]

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

Key facts at a glance

LOINC
41037-3
Short code
Cocaine Mec Ql Cfm
Synonyms
Cocaine Mec Ql 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 like rapid heartbeat, dilated pupils, or if you’ve been exposed to cocaine. It’s also used in workplace drug testing, legal cases, or before certain surgeries to ensure safety.

What to Expect Before the Test

No special preparation is needed, but you may be asked to provide a urine sample in a clean container. If you’ve recently used certain medications or supplements, let your provider know—some can affect results.

How the Test Works

The test measures metabolites of cocaine (like benzoylecgonine) in your urine using a sensitive lab method. A small sample is analyzed to detect these substances, which break down from cocaine in your body.

Possible Results and Interpretation

A positive result means cocaine metabolites were found, indicating recent use. A negative result means none were detected. Results alone don’t confirm use—context (like symptoms or timing) matters.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine Cocaine Metabolite Screen

Frequently asked questions

How long does it take to get results?
Results are typically available within 1–3 business days, depending on your lab. Follow-up instructions from your provider will guide next steps.
Can false positives or negatives happen?
Yes, rare false positives may occur with certain medications, foods, or lab errors. False negatives are less common but can happen if use was very recent or the test window was too short.
What if I have questions about my results?
Always discuss your results with your healthcare provider. They can clarify interpretations, explain next steps, and address any concerns about your health or substance use.
  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