Drugdiag® Tests and Chemical Submission: What a Rapid Screening Can Really Detect
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What does a rapid test really detect?
Drugdiag® tests are based on an immunochromatographic method. Each reactive zone is designed to detect a specific substance, metabolite, or family: THC, cocaine, amphetamines, methamphetamines, opiates, benzodiazepines, ketamine, or new synthetic drugs depending on the reference.
The result indicates whether the target is detected above or below the device’s threshold. It does not provide the exact name of the consumed product, its dose, the time of administration, or the degree of impairment of the person.
Why do some instructions mention numerous molecules?
Instructions may present cross-reactivity studies. They indicate which related molecules are likely to trigger a line corresponding to a drug family.
Saliva and urine do not meet the same needs
Saliva test
Saliva is generally used to detect relatively recent exposure. The window varies depending on the substance, threshold, dose, frequency of use, and sampling conditions.
Urine test
Urine often detects metabolites eliminated after consumption. It can therefore remain positive longer, without proving the person was still under the influence of the substance at the time of sampling.
How to interpret the result?
- Negative result: the panel targets were not detected at the test threshold;
- Presumptive positive result: a target reacted and must be confirmed in medical, legal, or professional situations;
- Invalid result: the internal control is not compliant and the test must be redone.
What to do in case of suspicion?
- Ensure the person’s safety and stay with them;
- Call 15 or 112 in case of malaise, loss of consciousness, or danger;
- Seek medical attention quickly, as some substances disappear rapidly from the body;
- Keep the drink, container, and available items without unnecessary handling;
- Report the facts to law enforcement when the person wishes or when the situation requires it;
- Never delay medical care to perform a self-test.
Choose a suitable panel
The right test depends on the type of sample, substances sought, elapsed time, and context. A broader panel is only useful if it corresponds to the anticipated risk and if its limits are understood.
AMA Prévention supports individuals, healthcare professionals, companies, and organizers in choosing the Drugdiag® tests suited to their prevention approach.
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