12-Panel Hair Follicle Drug Test: What It Screens For | AMH Nationwide
12-Panel Hair Follicle Drug Test What It Screens and Why It Matters
The 12-panel hair follicle drug test what it screens includes a specific set of substances commonly tested for to detect drug use over a 90-day period. This test covers 12 drug classes, offering a broad detection range. Collection is directed through national labs. Call (877) 731-6362 to schedule your test.
What substances does the 12-panel hair follicle drug test screen for?
The 12-panel hair follicle drug test screens for 12 specific drug classes by analyzing hair samples, which reveal drug use up to approximately 90 days prior to collection. It detects substances that have been incorporated into the hair shaft after drug consumption.
How does the 12-panel hair follicle drug test panel size affect detection?
The panel size determines which drug classes are included in the test and how comprehensive the screening is. A 12-panel test covers a wider range of substances than smaller panels, improving the ability to detect various drug use patterns.
Smaller panels, such as 5- or 7-panel tests, screen fewer substances and may miss certain drugs covered by the 12-panel test. Larger panels offer broader detection but vary by provider.
| Panel Size | Drugs Screened |
|---|---|
| 5-Panel | Amphetamines, Cocaine, Marijuana, Opiates, PCP |
| 7-Panel | Adds Benzodiazepines, Barbiturates |
| 12-Panel | Includes Methadone, Propoxyphene, Ecstasy, Oxycodone, Hydrocodone |
Choosing a 12-panel test ensures detection of prescription opioids and other substances not always included in smaller panels.
What is the detection window for substances in a 12-panel hair follicle drug test?
The 12-panel hair follicle drug test typically detects drug use within approximately 90 days prior to testing. Hair grows about 0.5 inches per month, and laboratories usually analyze the most recent 1.5 inches of hair to cover this period.
This long detection window allows the test to identify drug use that urine or saliva tests might not detect due to their shorter detection periods.
Who typically orders a 12-panel hair follicle drug test and why?
Employers, legal entities, and rehabilitation programs often order the 12-panel hair follicle drug test when a broad and historical overview of drug use is required. It is preferred for non-DOT safety-sensitive roles because hair testing is not accepted under DOT regulations.
This test is used when long-term drug use history is more relevant than recent use, such as in pre-employment screening or compliance monitoring.
Schedule Your 12-Panel Hair Follicle Drug Test
To arrange a 12-panel hair follicle drug test with comprehensive substance screening, call (877) 731-6362 today.
How is the 12-panel hair follicle drug test processed through national labs?
AMH Nationwide directs the requester to a collection site where the hair sample is collected and sent to one of five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox.
Each non-negative screen is reviewed by a certified Medical Review Officer (MRO) to ensure accuracy and validity as part of standard processing.
How do I arrange a 12-panel hair follicle drug test?
AMH Nationwide provides the lab order and directs you to a nearby collection site. There is no online ordering available for this test. To arrange testing, call (877) 731-6362 and speak with a representative who will assist with scheduling and answer any questions.
Common Questions
Yes, the 12-panel hair follicle drug test includes detection of prescription opioids such as oxycodone, hydrocodone, methadone, and propoxyphene, as well as benzodiazepines and barbiturates.
This test can detect drug use approximately 90 days prior to sample collection by analyzing hair growth that incorporates drug metabolites.
No, DOT regulations require urine testing under 49 CFR Part 40. Hair follicle testing is used for non-DOT safety-sensitive roles.
All non-negative results are reviewed by a certified Medical Review Officer who confirms the findings and may contact the tested individual for verification.
Certain hair treatments like bleaching or dyeing may reduce drug concentration but do not eliminate the ability of the test to detect drug use.
After calling (877) 731-6362, AMH Nationwide will provide you with the location of a nearby collection site affiliated with one of the five national lab networks.
Ready to get started?
AMH Nationwide provides the lab order and arranges collection nationwide. Every non-negative result reviewed by a certified Medical Review Officer. Call (877) 731-6362 or contact us.


