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Cocaine concentration in saliva (24-hour quantitative measurement)

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

This test measures the amount of cocaine present in your saliva over a 24-hour period, often used to assess recent drug use.

Quick summary

["Helps track recent cocaine exposure for medical or legal purposes."]

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

Key facts at a glance

LOINC
74671-9
Short code
Cocaine Sal Ql Cfm
Synonyms
Cocaine Sal 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 concerns about recent cocaine use, are undergoing treatment for substance use disorder, or are part of a monitoring program. Saliva testing is non-invasive and can provide a snapshot of recent drug intake, unlike blood or urine tests that reflect longer-term exposure.

How the Test Works

A small saliva sample is collected, usually by swabbing your inner cheek. The test measures cocaine metabolites (chemical breakdown products) in your saliva over 24 hours, often analyzed using a sensitive immunoassay or similar method to detect even small amounts.

Sample Collection and Preparation

Saliva is collected at specific intervals (e.g., every few hours) or continuously monitored via a device worn in your mouth. The sample is processed in a lab to quantify cocaine metabolites, which are then compared to a reference standard.

What to Expect Before the Test

No special preparation is needed, but avoid chewing gum, smoking, or eating/drinking for a few hours before collection if instructed. If you’re taking medications, discuss them with your provider to ensure they don’t interfere with results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

24-Hour Saliva Cocaine Test

Frequently asked questions

This test is critical for monitoring compliance with treatment plans, detecting recent drug use in workplace or legal settings, or assessing the effectiveness of interventions. Unlike blood tests, saliva results reflect recent exposure and can be more convenient for patients.
Cocaine in saliva can indicate recent use within hours of ingestion, making it useful for immediate assessment. However, false negatives may occur if the test window isn’t timed correctly or if the sample isn’t collected properly.
What do my results mean?
Results are typically reported as a concentration value (e.g., micrograms per milliliter). A positive result suggests recent cocaine exposure, but interpretation depends on clinical context (e.g., treatment goals, legal requirements). Always discuss results with your provider.
Can I eat or drink before the test?
Avoid eating, drinking, chewing gum, or smoking for a few hours before collection to prevent contamination. Follow your provider’s specific instructions for the best accuracy.
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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