6-Month Hair Drug Test: How It Works | AMH Nationwide
Understanding the 6-Month Hair Drug Test How It Works for Reliable Drug Detection
The 6-month hair drug test how it works involves collecting a small hair sample to detect drug use over the past six months. The sample is analyzed by national labs using screening and confirmation steps with MRO review. Call (877) 731-6362 to schedule your test.
What is a 6-month hair drug test and how is the sample collected?
A 6-month hair drug test how it works begins with collecting approximately 1.5 inches of hair closest to the scalp, representing up to six months of growth. A small sample, usually about 100 strands, is taken from the crown area using scissors. This collection is non-invasive and requires no special preparation.
Which labs analyze 6-month hair drug tests and how is the sample processed?
The 6-month hair drug test how it works includes routing the collected sample to one of five national labs: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox. Each lab follows strict protocols for hair testing to ensure accuracy and reliability.
How does the lab analyze the 6-month hair drug test sample?
The 6-month hair drug test how it works involves two main steps: screening and confirmation. The initial screening detects the presence of common drugs or metabolites. If the screening is positive or inconclusive, confirmation testing using gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-tandem mass spectrometry (LC-MS/MS) is performed for definitive results.
What role does the Medical Review Officer (MRO) play in the 6-month hair drug test process?
Every non-negative 6-month hair drug test result undergoes review by a certified Medical Review Officer. The MRO evaluates lab findings, verifies testing integrity, and interviews the individual if necessary to rule out legitimate medical explanations before releasing a final report.
Ready to Schedule Your 6-Month Hair Drug Test?
Contact AMH Nationwide to arrange your test at a nearby collection site. Call (877) 731-6362 to begin.
What are the detection windows and limitations of the 6-month hair drug test?
The 6-month hair drug test how it works detects drug use within approximately the past six months based on hair growth rates. However, hair treatments, color, and individual hair growth variability can affect detection. It does not detect very recent drug use within the past week as hair has not yet grown out.
How does AMH Nationwide coordinate sample collection for the 6-month hair drug test?
AMH Nationwide provides the lab order and directs the requester to an authorized collection site near the individual. Collection sites follow standardized procedures for hair sampling to maintain chain of custody. AMH does not offer online ordering; scheduling requires calling (877) 731-6362.
Common Questions
Approximately 1.5 inches of hair closest to the scalp, about 100 strands, is collected to represent six months of drug use history.
The test screens for common drugs including THC, cocaine, opiates, amphetamines, and PCP, but detection depends on drug type and lab protocols.
No. DOT safety-sensitive testing requires federally certified urine tests under 49 CFR Part 40. Hair tests are used for non-DOT roles.
A positive or inconclusive screening triggers confirmation testing with advanced mass spectrometry methods to verify results.
Hair treatments and color can influence detection sensitivity, but labs apply methods to minimize these effects.
Turnaround times vary by lab but typically results are available within several days after sample receipt and analysis.
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.