Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing is recognized as an effective method for identifying drug and alcohol consumption. Hair captures a comprehensive history of consumption by embedding biomarkers within the hair as it grows. When collected from near the scalp, it provides a timeframe of detection for up to three months for alcohol and other substances. Collecting hair is straightforward, somewhat resistant to tampering, and easily transportable.
An optimal sample consists of 1.5 inches of approximately 200 hair strands (comparable to a #2 pencil's width) nearest the scalp, generating 100mg of hair for screening and verification. For EtG, additional tests, or those exceeding 10 panels, 150mg of hair is advisable. We suggest measuring the sample with a jeweler’s scale. If scalp hair is not available, a similar quantity of body hair can be used. Reference to head hair pertains solely to scalp hair, while body hair includes all other types (such as facial and axillary hair).
Process Overview
The laboratory processing of drug test results encompasses four key steps: Accessioning, Screening, Extraction, and Confirmation.
Accessioning entails registering a sample into the laboratory's system. This step ensures the sample was sealed and dispatched correctly, assigns a random Laboratory Accessioning Number (LAN), and finalizes any supplementary data entry absent from an electronic chain of custody.
Screening serves as an initial prompt assessment for substances of abuse. Though cost-effective in excluding drug use in most samples, a confirmed result is crucial for it to be legally admissible. Presumptively positive samples from Screening require further confirmation.
In instances of a presumptive positive during Screening, additional hair is extracted from the original sample for the Extraction phase. Here, drugs are isolated from hair in significantly lower concentrations than other methods (such as urine or saliva), making hair drug testing notably challenging.
Confirmed positive Screening outcomes are verified through GC/MS, GC/MS/MS, or LC/MS/MS. Prior to confirmation, all presumptive positive samples undergo necessary washing. The complete process from Accessioning to Confirmation is examined under the CAP (College of American Pathologists) Hair designation alongside ISO / IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Often mislabeled as "hair follicle tests", these tests actually assess the hair shaft rather than the follicle beneath the scalp.
The superiority of hair testing over urine tests is evident in Stanfield, TX. Hair testing's detection accuracy extends up to 90 days, surpassing the short detection period of urine tests.
In Stanfield, TX, the extended detection window of hair follicle testing is a critical advantage. Unlike other methods, these tests can uncover drug utilization from as far back as 90 days.
Hair follicle tests in Stanfield, TX are largely tamper-resistant, significantly lowering the risk of sample adulteration and providing credible results.
Our nationwide and local testing centers in Stanfield, TX offer convenience and accessibility.
In Stanfield, TX, the process for hair follicle testing is simple and confidential, assuring user privacy and convenience.
Our hair follicle drug testing services in Stanfield, TX offer affordable pricing and prompt results, which is crucial for businesses of all sizes.
In Stanfield, TX, hair follicle drug tests are renowned for their rapid and precise results. Accurate detection capabilities set them apart, allowing for swift identification of substance use. These tests
Employers in Stanfield, TX are afforded peace of mind through hair follicle testing that assures adherence to drug-free workplace standards.
