Drug and alcohol testing guides
In short
Clear, research based answers to the questions people ask most about drug and alcohol testing. Start with the topic closest to your situation, whether you are in recovery, worried about someone you love, or referring a client.
Talk to a real person today. Call (888) 305-5422. Monday to Friday, 9 AM to 5 PM. Testing by appointment.
How to use these guides
Each guide answers one question directly, explains the details in plain language, and links to the research behind every medical or scientific claim, from sources such as SAMHSA, NIDA, NIAAA and peer reviewed journals. They are written for people in recovery, worried parents and families, attorneys and clinicians. Nothing here replaces advice from your own doctor, therapist or attorney.
Alcohol testing and EtG
How long does an EtG test detect alcohol?
Typical EtG detection windows, why cutoffs change the answer, and how results should be used.
Read the guideEtG and incidental alcohol
How hand sanitizer, mouthwash and kombucha can affect an EtG test, and what to do about it.
Read the guideRemote breathalyzer vs in-person testing
A neutral look at what remote breath devices and in-person testing each cover.
Read the guide
Understanding drug tests
How long drugs stay in urine, saliva and hair
Typical detection windows by drug and test type, with the factors that stretch or shorten them.
Read the guideWhat a 12 panel drug test checks for
The drug classes a 12 panel usually covers, what it can miss, and questions to ask.
Read the guideUrine vs saliva vs hair
How to pick the specimen type that fits the question you need answered.
Read the guideScreening vs confirmation
Why an instant positive is presumptive and when laboratory confirmation matters.
Read the guideAt-home drug test cups
What a drugstore cup can tell you, where it falls short, and what to do next.
Read the guideTaking prescribed medication?
Which medicines show up or cross-react on screens, and what to tell your tester.
Read the guideWhat a dilute sample means
How labs flag dilute urine, innocent causes, and simple ways to avoid a retest.
Read the guide
Families and parents
Should I drug test my teen?
What pediatric experts advise, why secret home testing backfires, and a better sequence.
Read the guideTalking to your adult child about testing
How to raise testing with an adult son or daughter and agree on fair terms.
Read the guideHome for winter break
How to talk about drug and alcohol testing with a student home for break, without a fight.
Read the guideRebuilding trust with family in recovery
Consistent actions, clear agreements and shared results that help trust return.
Read the guideSober living vs monitoring
When testing at home is enough and when a structured living environment helps more.
Read the guide
Recovery and next steps
Random testing after treatment
Why random testing supports the first year after rehab and how to set it up.
Read the guideWhat to do after a positive test
Calm, practical next steps for the person tested and the people who love them.
Read the guideFree and low cost recovery resources in Los Angeles
Helplines, county services, treatment locators, peer support and scholarships.
Read the guide
Legal and professional
Court ordered testing: what to expect
What testing days look like, questions for your attorney, and mistakes to avoid.
Read the guideWhat chain of custody means
The documentation that makes a result trustworthy, and when you need it.
Read the guideMonitoring programs for licensed professionals
How California professional programs work and where private support fits.
Read the guide
Want to talk it through with a person?
Guides can only go so far. At Blackburn Monitoring, a monitoring coordinator can answer questions about your situation, help you choose the right tests, and set up a low cost testing plan in Los Angeles. Testing is by appointment at 12326 Venice Blvd, Monday to Friday, 9 AM to 5 PM, with other Westside locations for off hours. Results are shared only with people you authorize in writing.
See how monitoring works, all test types, our FAQ, or more support beyond testing. Blackburn Monitoring is part of The Blackburn Group.
Talk to a real person today. Call (888) 305-5422. Monday to Friday, 9 AM to 5 PM. Testing by appointment.
These guides are general information, not medical or legal advice. If you are in crisis, call or text 988. In an emergency, call 911.
Common questions
Who writes these guides?
The Blackburn Monitoring team writes them in plain language, and every medical or scientific claim links to an authoritative source such as SAMHSA, NIDA, NIAAA or a peer reviewed journal.
Are these guides medical or legal advice?
No. They are general information. Talk with your own doctor, therapist or attorney about your specific situation.
Which guide should I read first?
If you are worried about a family member, start with the families section. If you have a test coming up, start with detection windows or the prescriptions guide. If a test came back positive, read what to do after a positive test.
Can I talk to someone instead of reading?
Yes. Call (888) 305-5422, Monday to Friday, 9 AM to 5 PM, to speak with a real person about testing in Los Angeles.
Not ready to call? Request a callback.