Accredited Drug Testing offers comprehensive hair follicle drug examinations in St. Leonard, Maryland. Our expertise in hair analysis includes both drug and alcohol testing, and our extensive network of testing locations across the nation can carry out these analyses efficiently. Generally, 1.5 to 2 inches of hair from your head or body is preferred. Our hair analyses can detect a range of substances including drugs and alcohol/ETG with customized options available.
Nowadays, hair follicle drug testing is increasingly preferred for drug screening. Esteemed by employers, judicial systems, and Substance Abuse counselors, it is often chosen over regular urine tests. Entities with a strict no-drug policy rely on hair tests because they detect drug use for up to 90 days. Collected under supervision, this method is nearly infallible, though for drugs consumed within five days, the urine test remains unrivaled in accuracy.
* 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.
The examination of hair has emerged as an effective technique to identify drug and alcohol consumption. Hair encapsulates a historical record of substance use by embedding biomarkers within the fibers of the hair as it grows. When taken close to the scalp, hair can offer an estimated 3-month detection period for substances. Collecting hair samples is straightforward, challenging to tamper with, and simple to transport.
A 1.5-inch segment of around 200 hair strands (comparable to the thickness of a #2 pencil) nearest to the scalp yields 100mg of hair, which is optimal for testing and validating results. For tests like EtG, additional panels, or those beyond 10 panels, a specimen of 150mg is preferred. It's advisable to measure the specimen using a jeweler’s scale. In the absence of scalp hair, a similar amount of body hair can be used. "Head hair" refers specifically to scalp hair, whereas "body hair" encompasses all other types (facial, axillary, etc.).
Process Overview
The laboratory analysis of a drug test result encompasses four primary stages: Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the initial stage where a sample is integrated into a lab's system. This process includes checking that the sample was securely sealed and transported, assigning a unique LAN (Laboratory Accessioning Number), and completing any missing data not captured by a digital chain of custody system.
Screening is a preliminary examination for potential substance abuse. While Screening is an economical method to dismiss drug use in most samples, a positive indication must undergo Confirmation to be valid in legal settings. Any samples that yield a positive result in Screening necessitate a subsequent confirmation.
For samples testing positive in Screening, additional hair is extracted from the initial sample and prepped for Extraction. In this phase, drugs are retrieved from hair at a lower concentration compared to other techniques (e.g., urine or oral fluid), which makes hair drug testing the most intricate method to conduct.
The Confirmation of any positive results in Screening is performed using GC/MS, GC/MS/MS, or LC/MS/MS. All initially positive samples are cleansed before Confirmation if needed. The complete lab process from Accessioning to Confirmation undergoes review under both CAP (College of American Pathologists) Hair guidelines and ISO / IEC 17025 certification standards.
Advantages of hair drug testing:
Limitations:
Note: Though sometimes termed "hair follicle tests," this analysis targets the hair strand itself, not the follicle located beneath the scalp.
Why Hair Follicle Testing Beats Urine Testing in St. Leonard, MD
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