Understanding the 19-Panel Hair Follicle Drug Test for Accurate Long-Term Screening

What is the 19-panel hair follicle drug test which test?

The 19-panel hair follicle drug test which test detects the presence of 19 different drugs or drug classes from a small hair sample. It provides a detection window of up to 90 days, making it useful for identifying long-term drug use patterns. The test is processed through five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, and ExperTox.

Because hair grows approximately half an inch per month, the test analyzes the most recent 1.5 inches of hair to detect drug metabolites embedded during hair formation. This method differs from urine or saliva testing, which reflect recent or immediate drug use.

When is the 19-panel hair follicle drug test the right choice?

The 19-panel hair follicle drug test is ideal when long-term drug use verification is needed rather than short-term detection. It is often selected in situations where employers, courts, probation officers, or individuals require a comprehensive drug history over several months.

This test is appropriate when:

• Monitoring compliance with drug-free policies over time

• Confirming abstinence or drug use patterns in legal or probation settings

• Conducting pre-employment or ongoing employee screenings in non-DOT safety-sensitive roles

• Personal drug use verification when a longer detection window is necessary

How does the 19-panel hair follicle test compare to other drug tests?

The 19-panel hair follicle drug test offers a longer detection window than urine, saliva, or blood tests, which typically detect drug use from hours to a few days. However, it does not detect very recent drug use within the last 7 days because hair needs time to grow.

Urine tests are generally preferred for DOT-regulated safety-sensitive positions because they follow the federally certified urine protocol under 49 CFR Part 40. Hair tests are not acceptable for DOT testing but are common in non-DOT workplace drug screens.

Each test type has specific advantages depending on the testing requirements and regulatory guidelines. The 19-panel hair follicle test is best when long-term drug history is required.

Who typically orders the 19-panel hair follicle drug test?

Employers in industries without DOT regulations often use the 19-panel hair follicle drug test for pre-employment and random drug screening. Courts and probation departments may require this test to monitor compliance with drug-related conditions over several months.

Individuals may also request this test for personal reasons to verify abstinence or monitor drug use history. The test’s comprehensive panel and extended detection period make it suitable for these varied needs.

How is the 19-panel hair follicle drug test collected and processed?

AMH Nationwide directs the requester to a collection site affiliated with one of five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, and ExperTox. No online ordering is available; scheduling requires calling (877) 731-6362.

At the collection site, a small hair sample is taken from the scalp or body. The sample is then sent to the lab for analysis. Every non-negative screen is reviewed by a certified Medical Review Officer (MRO) as part of standard processing to ensure accuracy and proper interpretation.

What does the 19-panel hair follicle drug test cost?

Pricing for the 19-panel hair follicle drug test varies depending on the specific panel and detection window required. Additional factors include the lab network used and any special reporting needs.

To receive an accurate price quote, contact AMH Nationwide at (877) 731-6362. There is no online ordering or pricing available without direct consultation.

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