Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair analysis is recognized as an effective method for identifying drug and alcohol consumption. By embedding biomarkers in the hair strands, hair reveals an extended timeline of substance usage. When hair samples are collected near the scalp, they can indicate alcohol and drug use for up to around three months. Hair is straightforward to gather, difficult to tamper with, and simple to transport.
A sample measuring 1.5 inches, consisting of roughly 200 hair strands (comparable to the thickness of a #2 pencil) near the scalp, will yield 100mg, which is optimal for screening and confirmation. For EtG, additional tests, and/or panels exceeding ten, a 150mg specimen is preferred. It is suggested to weigh the sample on a jeweler’s scale. In the event that scalp hair cannot be collected, a similar quantity of body hair may be utilized. Mention of head hair exclusively refers to scalp hair, whereas body hair pertains to all other types (such as facial or axillary hair).
Process Overview
The drug test result processing in a laboratory involves four primary stages: Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the first step where a sample is entered into the laboratory’s system. This step includes confirming that the sample was sealed and sent correctly, assigning it a random LAN (Laboratory Accessioning Number), and performing any additional data input not supplied by an electronic chain of custody system.
Screening is a preliminary assessment for substances of abuse. Although Screening is economical for excluding drug use in most samples, a positive result requires confirmation to be legally acceptable. Samples that show a potential positive in Screening necessitate further Confirmation.
Upon a presumptive positive in the Screening stage, more hair is extracted from the initial sample for the Extraction process. Here, drugs are isolated from hair in a more diluted form compared to other techniques (for example, urine or oral fluid), explaining why hair drug testing is the most challenging methodology to carry out.
Confirmation of any positive Screening outcome is conducted using GC/MS, GC/MS/MS, or LC/MS/MS. All presumptive positive samples undergo washing as required before Confirmation. The entire lab process from Accessioning to Confirmation is evaluated under both the CAP (College of American Pathologists) Hair standard and ISO / IEC 17025 accreditation.
Advantages of hair drug testing:
Limitations:
Note: Though commonly known as "hair follicle tests", this test analyzes the hair strand, not the follicle beneath the scalp.
Hair follicle testing is a superior alternative to urine testing in Linton Hall, VA. With its accurate detection of a wide range of drugs, hair testing provides enhanced reliability.
Linton Hall, VA, sees hair follicle testing offering extensive benefits over urine tests, particularly in its ability to detect longer-term drug use.
Contrasting urine tests, hair testing in Linton Hall, VA, provides an advanced detection method, offering broader insights into substance habits.
Hair follicle testing in Linton Hall, VA, offers an extended detection window, identifying drug use up to 90 days back, surpassing traditional methods.
Employers in Linton Hall, VA, gain a long-term view of applicants' habits through hair follicle testing, which highlights up to 90 days of drug use.
In Linton Hall, VA, hair tests provide insight into three months of drug history, offering a detailed picture of substance usage over time.
In Linton Hall, VA, hair follicle tests offer a tamper-resistant method, minimizing the chances of adulteration and ensuring trustworthy results.
Hair tests in Linton Hall, VA, significantly reduce sample tampering risks, providing secure and credible testing results for substance use.
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The precision and efficiency of hair follicle drug tests in Linton Hall, VA, are unmatched. These tests offer high accuracy in detecting substance use, delivering reliable results quickly.
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Hair follicle tests offer Linton Hall, VA, businesses a compliant solution for maintaining a drug-free workplace, promoting a secure environment.
