Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair analysis has emerged as an effective approach for identifying drug and alcohol consumption. Hair strands hold a prolonged record of substance use by embedding biomarkers within the fibers as the hair grows. When extracted near the scalp, hair can offer a detection timeframe of up to approximately 90 days for alcohol and drugs. The collection process is straightforward, relatively challenging to tamper with, and convenient to transport.
A sample measuring 1.5 inches of around 200 hair strands (equivalent to the width of a #2 pencil) near the scalp produces 100mg, serving as the optimal amount for preliminary testing and confirmation. For EtG, additional tests, and/or panels exceeding 10, a specimen of 150mg is advisable. It is suggested to use a jeweler’s scale to weigh the sample. If scalp hair cannot be collected, a similar amount of body hair may be used. Scalp hair refers specifically to head hair, while body hair encompasses all other types (such as facial, underarm, etc.).
Process Overview
The principal steps in the lab processing of a drug test result include Accessioning, Screening, Extraction, and Confirmation.
Accessioning involves the preliminary incorporation of a sample into a laboratory's database, which includes ensuring the sample was sealed and conveyed correctly, assigning a unique LAN (Laboratory Accessioning Number), and completing any extra data entry not covered by an electronic chain of custody system.
Screening involves an initial rapid assessment for substances of abuse. While Screening is a budget-friendly method to dismiss drug usage in most samples, a positive result mandates further verification for legal admissibility. Any samples preliminarily positive in Screening necessitate a secondary confirmation.
If a sample tests positive in the Screening phase, additional hair is extracted from the original specimen and readied for Extraction. In this phase, drugs are extracted from the hair at significantly lower concentrations than in other methods (such as urine or saliva), making hair drug screening the most complex method.
Confirmation for any positive screening result is achieved using GC/MS, GC/MS/MS, or LC/MS/MS technologies. All samples considered presumptively positive undergo washing before confirmation as required. The full lab process, from Accessioning to Confirmation, is assessed under both the CAP (College of American Pathologists) Hair category and adhering to ISO / IEC 17025 accreditation.
Advantages of hair drug testing:
Limitations:
Note: Although commonly termed "hair follicle tests", the analysis targets the hair strand, not the hair follicle beneath the scalp.
Why Hair Follicle Testing Beats Urine Testing in Monterey, MA
Employers and other stakeholders benefit from the enhanced insights hair testing provides.
Extended Detection Window in Monterey, MA
This comprehensive insight aids in making informed employment and management decisions.
Tamper-Resistant Testing Method in Monterey, MA
This security makes hair tests a trustworthy option for many organizations.
Convenient Nationwide Testing Locations and Local Locations in Monterey, MA
Customers benefit from hassle-free testing experiences nation-wide.
Simple, Confidential Process in Monterey, MA
This approach addresses privacy concerns and enhances user experience.
Affordable Pricing and Fast Turnaround in Monterey, MA
Organizations enjoy cost-effectiveness paired with speedy service.
Fast, Accurate, and Reliable Results in Monterey, MA
With their ability to swiftly detect a wide array of substances, hair tests have become a trusted tool for many.
Compliance and Peace of Mind for Employers in Monterey, MA
Employers enjoy reduced liabilities and enhanced peace of mind.