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6mamsalcfmmcnc

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

A confirmatory test that detects 6-monoacetylmorphine (6-MAM), a specific metabolite of heroin, in saliva to identify recent heroin use.

Quick summary

{"6-MAM is a unique breakdown product of heroin and cannot come from other substances","This test uses oral fluid (saliva) sample collection","A positive result indicates heroin use within the past 24-48 hours","Confirmatory methods are highly accurate and specific"}

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

Key facts at a glance

LOINC
72763-6
Short code
6-MAM Saliva Confirmatory
Synonyms
6MAM Sal Cfm-mCnc
Category
chemistry
Sample
serum
Container
Oral fluid collection device (saliva swab/collection container) - commercially available oral fluid collection kits designed for drug testing
Units
N/A
Ref low
0
Ref high
10
Fasting
false
Population
adult
Sex
all
Age range
≥ 18 years
Method
confirm
CPT
80307 (Toxicology, confirmatory panel; individual confirmatory test) or 82077 (6-MAM, specific)
SNOMED
422653003 (Heroin measurement) or 274927009 (Detection of 6-monoacetylmorphine)
Specimen volume
Approximately 1-2 mL of collected oral fluid
Stability
Room temperature: 5-7 days; Refrigerated (2-8°C): 2-3 weeks; Frozen (-20°C or below): longer stability. Shipped on dry ice for confirmatory testing.
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
24–72 hours
Order
routine

What is this test?

The 6-Monoacetylmorphine (6-MAM) test is a specialized laboratory test that detects the presence of 6-MAM in your saliva (oral fluid). 6-MAM is a unique metabolite produced when your body breaks down heroin. Unlike other drug tests that may detect substances that could come from multiple sources, 6-MAM is specifically created from heroin processing, making it a definitive marker for heroin use.

How is the sample collected?

A saliva sample is collected by placing a collection device (such as a swab or oral fluid collector) in your mouth to absorb saliva. The process is simple, non-invasive, and typically takes only a few minutes. You may be asked to avoid eating, drinking, or smoking for a certain period before sample collection to ensure accurate results.

What does the confirmatory method mean?

A confirmatory test is more sophisticated than initial screening tests. While screening tests provide preliminary results, confirmatory testing (often using techniques like mass spectrometry) is highly specific and can accurately identify and measure the exact amount of 6-MAM present. This reduces the chance of false positives and provides more reliable results.

Reference range

Negative: < 10 ng/mL (cutoff threshold). Results above cutoff indicate recent heroin use. Quantitative results reported when positive.N/A

Specimen: serum

Patient should not eat, drink, smoke, or chew gum for at least 15-30 minutes before sample collection. Rinse mouth with water if needed before collection. Inform about any prescribed medications or substances.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

How long does heroin stay detectable in a saliva test?
6-MAM can typically be detected in saliva for 24-48 hours after heroin use. The detection window is shorter than some other drug tests (like urine tests), which makes this test useful for determining very recent use.
Can a positive result come from prescription medications?
No. 6-MAM is uniquely produced from heroin metabolism. It cannot be created from legal prescription medications, over-the-counter drugs, or other illicit substances. A positive 6-MAM result is specific evidence of heroin use.
Will food or drinks affect the test results?
Certain foods, beverages, and mouthwashes may potentially interfere with test results. Your healthcare provider will give you specific instructions about what to avoid before the test, such as not eating, drinking, or smoking for a period of time before sample collection.
Is this test painful or invasive?
No. Saliva collection is quick, painless, and non-invasive. It simply involves placing a swab in your mouth to collect saliva, similar to how a cotton swab might be used for other purposes.
What happens if my test is positive?
If your test result is positive for 6-MAM, it indicates recent heroin use. Your healthcare provider will discuss the result with you and may recommend additional evaluation, counseling, or treatment options depending on the reason for testing.
  1. 1
    Lab Tests Online - Drug TestingSource
  2. 2
    Mayo Clinic Laboratories - Test CatalogSource
  3. 3
    Substance Abuse and Mental Health Services Administration (SAMHSA)Source

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