Stay calm and be honest
Ask what substance was detected and whether the result was confirmed
Request a copy of the test result and chain-of-custody information
Consider whether any prescription or over-the-counter medication could have caused the result
Mention any recent medical treatment, supplements, or foods that may be relevant
If appropriate, explain any accidental exposure clearly and briefly
Avoid making excuses or blaming others
Ask if a retest or confirmation test is available
Provide documentation for prescriptions or medical use if applicable
Keep your explanation short, factual, and respectful
Focus on what happened and what steps you are taking now
Be prepared to discuss any substance use honestly if that is the cause
Offer to comply with any follow-up testing or treatment requirements