6-Month Hair Drug Test: Results Timeline | AMH Nationwide
6-Month Hair Drug Test Results Timeline for Reliable Reporting
The 6-month hair drug test results timeline typically spans 5 to 10 business days from collection to initial report. Non-negative results undergo confirmation testing, extending the process by several days. Factors such as sample condition or lab volume can delay results. Call (877) 731-6362 for detailed timing information.
What is the typical 6-month hair drug test results timeline?
The typical 6-month hair drug test results timeline from collection to initial reporting is approximately 5 to 10 business days. Hair samples reflect drug use over the prior six months, making this test ideal for long-term detection.
After collection at one of the five national lab networks—Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox—the sample is sent to the lab for analysis.
What happens after the hair sample is collected?
Once the hair sample is collected, it is routed to one of the five national lab networks for testing. The lab performs initial screening to detect the presence of drugs within the six-month detection window.
If the initial screen is negative, results are typically reported within the 5 to 10 business day timeframe. Non-negative or inconclusive results trigger additional confirmatory testing.
How does confirmation testing affect the 6-month hair drug test results timeline?
Non-negative 6-month hair drug test results undergo confirmation by a certified Medical Review Officer (MRO) as part of standard processing. Confirmation testing uses more specific methods such as gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-tandem mass spectrometry (LC-MS/MS).
This confirmation step typically adds 3 to 5 business days to the results timeline, depending on lab workload and sample complexity.
What can delay the 6-month hair drug test results timeline?
Several factors can delay the 6-month hair drug test results timeline, including:
• Sample quality issues such as insufficient hair quantity or contamination
• High lab volume or staffing constraints at any of the five national networks
• The need for additional testing due to inconclusive initial results
• Administrative processing or courier delays between collection and lab receipt
Need Precise 6-Month Hair Drug Test Results Timeline?
Contact AMH Nationwide at (877) 731-6362 to discuss your testing needs and receive a detailed timeline based on your specific panel and circumstances.
Is the 6-month hair drug test used for DOT-regulated testing and how does this affect timing?
The 6-month hair drug test is not used for DOT-regulated safety-sensitive testing, which requires the federally certified urine protocol under 49 CFR Part 40. Hair testing is typically reserved for non-DOT roles.
This distinction means the 6-month hair test timeline does not include DOT-specific procedural steps but follows the standard lab network processing and confirmation protocols.
How do you initiate a 6-month hair drug test and what should you expect regarding results timing?
AMH Nationwide provides the lab order and directs the requester to a collection site within the five national lab networks. There is no online ordering option.
After collection, expect initial results in 5 to 10 business days, with confirmation adding extra days if needed. For precise timing and panel-specific details, call (877) 731-6362.
Common Questions
Initial results typically take 5 to 10 business days after sample collection, depending on the lab network and sample condition.
Non-negative results undergo confirmation testing by a Medical Review Officer, which can add 3 to 5 business days to the timeline.
Yes. Insufficient or contaminated samples may require recollection or additional testing, delaying the overall results timeline.
No. DOT-regulated testing requires a federally certified urine protocol. Hair testing is used for non-DOT roles only.
No. AMH Nationwide directs results to the requesting party. The individual tested typically does not receive results directly.
No. AMH Nationwide provides lab orders and directs to collection sites. There is no online ordering option.
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.