Accredited Drug Testing offers comprehensive hair follicle drug evaluations in Parker, Texas. For those needing a hair-based drug or alcohol analysis, our specialty includes hair assessments, with facilities in cities nationwide capable of conducting these tests. Generally, 1.5 to 2 inches of scalp or body hair is sufficient. Hair assessments can detect drugs, alcohol/ETG, or offer other tailored hair evaluation options.
In recent times, drug testing methods have increasingly incorporated hair follicle evaluations. Many employers, judicial systems, and substance abuse experts now prefer hair tests over traditional urine samples. Hair follicle analyses are employed by workplaces with strict no-drug policies, legal entities, and probationers. The advantage lies in their extended detection window—up to 90 days, with supervised collection making them almost foolproof. Nevertheless, for detecting recent usage within 5 days, urine tests remain the most precise.
* 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 screening has emerged as an effective method for identifying drug and alcohol consumption. Hair retains a long-term record of substances by capturing biomarkers within the strands' fibers. When collected near the scalp, hair can offer roughly a 3-month detection range for alcohol and drugs. Hair collection is straightforward, relatively hard to alter, and simple to transport.
A 1.5-inch segment of approximately 200 hairs (similar in size to a #2 pencil) closest to the scalp yields 100mg of hair, the optimal sample for analysis and verification. For EtG, additional tests, and/or those beyond 10 panels, 150mg of the sample is advisable. We suggest weighing the specimen with a jeweler’s scale. If scalp hair is absent, a comparable amount of body hair can be used. By head hair, we mean scalp hair exclusively. Body hair encompasses all other hair types (such as facial, axillary, etc.).
Process Overview
The fundamental steps in laboratory processing of a drug test outcome include Accessioning, Screening, Extraction, and Confirmation.
Accessioning entails the preliminary handling of a sample into a lab's system. This comprises ensuring the sample was properly sealed and dispatched, allocating a random LAN (Laboratory Accessioning Number), and finishing any extra data entry not managed by an electronic chain of custody framework.
Screening entails an initial brief check for substances of abuse. Although Screening is an economical method for excluding drug usage in most samples, a positive screen requires validation to be accepted in legal settings. Presumptive positive samples in Screening necessitate a subsequent confirmation.
If a sample shows presumptive positive results during Screening, additional hair is extracted from the original sample for Extraction. This phase involves extracting substances from hair at significantly lower concentrations compared to other methods (e.g., urine or oral fluid), making hair drug screening the most challenging method to conduct.
Confirmation of any positive screening result is carried out using GC/MS, GC/MS/MS, or LC/MS/MS. All presumptive positive samples undergo washing before confirmation as required. The complete process from Accessioning to Confirmation is scrutinized under both the CAP (College of American Pathologists) Hair designation and the ISO / IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Despite being referred to as "hair follicle tests", the analysis focuses on the hair strand, not the follicle beneath the scalp.
Why Hair Follicle Testing Beats Urine Testing in Parker, TX
Extended Detection Window in Parker, TX
Tamper-Resistant Testing Method in Parker, TX
Convenient Nationwide Testing Locations and Local Locations in Parker, TX
Simple, Confidential Process in Parker, TX
Affordable Pricing and Fast Turnaround in Parker, TX
Fast, Accurate, and Reliable Results in Parker, TX
Compliance and Peace of Mind for Employers in Parker, TX
