Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair analysis is recognized as an effective method for identifying drug and alcohol consumption. Hair archives a prolonged history of alcohol and other substances by embedding biomarkers within the fibers of the hair as it grows. By sampling hair near the scalp, it can reveal a detection period of up to about three months for alcohol and other substances. Hair collection is straightforward, challenging to tamper with, and convenient to transport.
A segment of 1.5 inches consisting of around 200 strands of hair (approximately the size of a #2 pencil) nearest to the scalp will yield 100mg of hair, which is the optimal sample size for analysis and verification. For EtG, supplementary tests, and/or panels beyond 10, 150mg of the sample is advisable. It's suggested to measure the sample with a jeweler's scale. If scalp hair cannot be sourced, a comparable quantity of body hair may be taken. Head hair pertains solely to scalp hair. Body hair includes all other types (facial, axillary, etc.).
Process Overview
The four primary stages involved in the laboratory processing of a drug test are Accessioning, Screening, Extraction, and Confirmation.
Accessioning involves the sample's initial processing into a laboratory's framework. This entails confirming that the sample was properly sealed and dispatched, assigning a random LAN (Laboratory Accessioning Number), and fulfilling any additional data entry absent from an electronic chain of custody system.
Screening entails a preliminary rapid check for substance misuse. While Screening offers a cost-efficient means to exclude drug consumption in most samples, a positive screen must be verified for legal admissibility. Samples yielding presumptively positive results in Screening necessitate additional confirmation.
When a sample registers presumptively positive during the Screening phase, additional hair is extracted from the initial specimen and prepared for Extraction. At this juncture, substances are retrieved from hair at significantly lower concentrations than other methodologies (e.g., urine or oral fluid), contributing to the complexity of hair drug screening.
Confirmation of any positive Screening outcome is conducted using GC/MS, GC/MS/MS or LC/MS/MS. All samples presumed positive are cleansed prior to confirmation as required. The complete laboratory process from Accessioning to Confirmation undergoes review under both the CAP (College of American Pathologists) Hair designation and accreditation to ISO / IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: While often called "hair follicle tests", the analysis targets the hair strand rather than the scalp's hair follicle.
Why Hair Follicle Testing Beats Urine Testing in Grant, WI is striking due to its superior accuracy and reliability. Hair testing goes beyond traditional urine tests by detecting substance use more reliably, gathering a comprehensive history in every analysis.
Compared to standard urine tests, hair follicle testing is distinguished in Grant, WI for more extensive detection periods, affording employers insights into workforce substance patterns with unmatched accuracy.
Extended Detection Window in Grant, WI offers employers a thorough perspective on drug use. With the ability to identify substance intake over 90 days, hair follicle tests provide a full snapshot of an individual's substance history.
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Tamper-Resistant Testing Method in Grant, WI highlights hair follicle testing's resilience against sample tampering. By significantly diminishing adulteration risks, this method assures users of secure and credible results.
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Fast, Accurate, and Reliable Results in Grant, WI highlights why hair follicle drug testing is preferred for speed and precision. Compared to older methods, hair testing delivers accurate results quickly, effectively identifying substance use.
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Compliance and Peace of Mind for Employers in Grant, WI promotes adherence to drug-free work environments. Hair follicle testing plays a crucial role in maintaining compliance, minimizing legal exposure, and elevating workplace security.
Through hair follicle testing, Grant, WI employers experience enhanced peace of mind. This method supports drug-free policies and minimizes risks, favoring a safer, more reliable work setting across industries.
