In West Chester, Pennsylvania, Accredited Drug Testing offers thorough hair follicle drug testing. Our expertise extends nationwide for those requiring drug or alcohol tests via hair samples, needing hair length of 1.5 to 2 inches. It's often possible to use body hair. Our tests cover drugs, alcohol/ETG, and other custom options.
Hair follicle testing is increasingly favored for drug screening. It is popular among employers with zero-tolerance policies, judicial courts, and substance abuse professionals. These tests are advantageous due to their 90-day detection window compared to typical urine tests. Accurate and difficult to tamper with, observation during collection is maintained. However, urine tests may still be preferred for recent drug exposure.
* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.
When you're searching for hair drug testing near me or hair drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.
Hair testing is increasingly recognized as a strong method for identifying drug and alcohol consumption. Hair provides an extended timeline of drug and alcohol intake by embedding biomarkers in the fibers of the hair as it grows. Hair samples collected near the scalp can reveal drug and alcohol use for a period of up to roughly 90 days. Hair collection is straightforward, somewhat resistant to tampering, and easy to transport.
Obtaining a 1.5-inch sample consisting of approximately 200 hair strands (about the diameter of a #2 pencil) closest to the scalp yields 100mg of hair, the optimal amount for both screening and confirmation tests. For EtG tests, additional panels, or scenarios involving tests beyond ten panels, 150mg of hair is advisable. Using a jeweler’s scale to measure the sample is beneficial. If scalp hair is unavailable, an equivalent amount of body hair can be obtained. "Head hair" specifically refers to scalp hair, whereas "body hair" encompasses all other types such as facial and axillary hair.
Process Overview
The laboratory processing of a drug test result involves four key phases: Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the initial stage where a sample is logged into a laboratory's system. This process includes ensuring that the sample was correctly sealed and transported, assigning a random LAN (Laboratory Accessioning Number), and completing any other necessary data entry not provided by an electronic chain of custody setup.
Screening provides a preliminary evaluation for substances of abuse. While Screening offers an economical solution to exclude drug use in most samples, a positive screen must be verified to be valid in legal settings. Any sample with a presumptive positive in Screening requires follow-up confirmation.
If a sample tests presumptively positive during the Screening phase, additional hair is drawn from the original sample and prepped for Extraction. This phase involves extracting drugs from hair at notably lower concentrations than other techniques (e.g., urine or saliva), presenting a challenging methodology for hair drug testing.
Confirmation of any positive screening outcomes is carried out using GC/MS, GC/MS/MS or LC/MS/MS techniques. All presumptive positive samples undergo washing before confirmation when necessary. The entire lab process, from Accessioning to Confirmation, is scrutinized under both the CAP (College of American Pathologists) Hair designation and ISO / IEC 17025 standard accreditation.
Advantages of hair drug testing:
Limitations:
Note: Although commonly called "hair follicle tests", the test actually examines the hair strand, not the follicle beneath the scalp
Why Hair Follicle Testing Beats Urine Testing in West Chester, PA
Extended Detection Window in West Chester, PA
Tamper-Resistant Testing Method in West Chester, PA
Convenient Nationwide Testing Locations and Local Locations in West Chester, PA
Simple, Confidential Process in West Chester, PA
Affordable Pricing and Fast Turnaround in West Chester, PA
Fast, Accurate, and Reliable Results in West Chester, PA
Compliance and Peace of Mind for Employers in West Chester, PA