Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing is increasingly recognized as an effective method for detecting drug and alcohol use. By embedding biomarkers within the fibers of a growing hair shaft, hair offers a comprehensive history of alcohol and other drugs. When obtained near the scalp, it can reveal drug and alcohol use over an approximate 3-month period. Hair is easy to collect, challenging to tamper with, and straightforward to send.
A 1.5-inch segment consisting of roughly 200 hair strands (around the size of a #2 pencil) closest to the scalp yields 100mg, which is the ideal amount for screening and confirmation. For EtG, add-ons, as well as tests greater than 10 panels, a 150mg sample is advisable. It's recommended to measure the sample using a jeweler’s scale. If scalp hair is unavailable, a comparable amount of body hair may be used. When discussing head hair, we mean scalp hair specifically. Body hair denotes all other types of hair (facial, axillary, etc.).
Process Overview
The core stages in laboratory processing of drug test outcomes are Accessioning, Screening, Extraction, and Confirmation.
Accessioning consists of preliminarily integrating a sample into the lab’s system. This step includes verifying that the sample was properly sealed and delivered, generating a random LAN (Laboratory Accessioning Number), and completing any additional data input absent from an electronic chain of custody system.
Screening entails a rapid assessment for substances of abuse. Although Screening offers a cost-efficient approach to disprove drug use in most samples, a confirmed positive screen is necessary for it to stand up in court. Samples deemed presumptively positive during Screening require a secondary validation.
In cases where a sample is tentatively positive in the Screening phase, extra hair is extracted from the original sample and prepped for Extraction. In this phase, drugs are extracted from hair at concentrations significantly lower than those found in other methods (e.g., urine or oral fluid), making hair drug testing more complex.
To confirm any positive screening result, methods such as GC/MS, GC/MS/MS, or LC/MS/MS are employed. All samples positing initial positives undergo necessary washing prior to Confirmation. The complete laboratory procedure from Accessioning to Confirmation is examined under both the CAP (College of American Pathologists) Hair designation and ISO / IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Though frequently termed "hair follicle tests", the analysis is performed on the hair strand—not the follicle beneath the scalp.
Hair follicle testing reigns superior over urine assessments in Woodside, DE. With detailed detection and a longer evaluation period, it uncovers substance use that urine tests might miss.
Compared to traditional urine tests, hair testing shines with its heightened accuracy. Its robust detection capabilities provide a reliable alternative for comprehensive assessments.
In Woodside, DE, hair follicle testing extends the detection timeframe to 90 days, offering a broad look at substance history. Employers benefit from a thorough understanding of any drug use.
By detecting drug use over months, hair tests in Woodside, DE provide insights that surpass other methods. The extended window translates to a clearer employee background view.
Woodside, DE trusts hair follicle tests for their tamper-resistant features. The low risk of sample manipulation ensures unwavering result credibility.
Reduce adulteration risks with hair testing in Woodside, DE. This method ensures reliability, safeguarding the results against manipulation tactics.
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