Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing is recognized as an effective method for detecting drug and alcohol consumption. Hair offers a prolonged timeline of substance use by capturing biomarkers within the growing hair strand. Collected near the scalp, hair samples can present up to a three-month detection range for substances. Collecting hair is straightforward, somewhat resistant to tampering, and simple to transport.
A 1.5-inch segment consisting of roughly 200 hair strands (comparable to a #2 pencil) closest to the scalp is ideal for a 100mg sample, suitable for screening and confirmation tests. For EtG, additional items, and/or tests exceeding 10 panels, a sample amounting to 150mg is advisable. A jeweler’s scale is suggested for weighing the sample. If scalp hair isn’t available, an equivalent quantity of body hair can be collected. References to head hair imply scalp hair exclusively, while body hair pertains to all other types (facial, axillary, etc.).
Process Overview
The laboratory procedure for processing a drug test result includes the four steps of Accessioning, Screening, Extraction, and Confirmation.
During Accessioning, the initial integration of a sample into the lab’s system occurs. This stage verifies the sample’s proper sealing and shipping, assigns a random LAN (Laboratory Accessioning Number), and completes any remaining data entry not covered by an electronic chain of custody system.
Screening provides a preliminary assessment for potential drug abuse. While this method is economical for excluding drug use in most samples, a positive result must undergo confirmation to be court-admissible. Presumptively positive Screening samples require secondary confirmation.
If a Screening stage sample tests presumptively positive, additional hair is extracted from the original specimen for the Extraction process. Here, drugs are extracted at significantly lower concentrations compared to other methods (e.g., urine or oral fluid), which is why hair drug screening is notably challenging.
Confirmation for positive screening results is conducted using GC/MS, GC/MS/MS, or LC/MS/MS. Before Confirmation, any samples with presumptive positive results are washed as necessary. The laboratory process from Accessioning to Confirmation is reviewed both under the CAP (College of American Pathologists) Hair designation and the ISO/IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Although commonly termed as "hair follicle tests", the test analyzes the hair strand, not the follicle beneath the scalp.
Why Hair Follicle Testing Beats Urine Testing in Dahlgren, IL
Hair testing offers superior detection capabilities compared to urine tests. With its wider detection window and difficulty in falsification, it ascertains more reliable outcomes.
Extended Detection Window in Dahlgren, IL
Hair follicle tests offer an invaluable timeframe by revealing drug use up to 90 days prior. This extensive period delivers comprehensive insights for employers.
Tamper-Resistant Testing Method in Dahlgren, IL
The hair follicle test method virtually eliminates sample tampering issues, ensuring results remain consistent and unquestionable.
Convenient Nationwide Testing Locations and Local Locations in Dahlgren, IL
Our expansive network of testing centers simplifies the process, providing effortless access for timely evaluations.
Simple, Confidential Process in Dahlgren, IL
Our testing protocol ensures a streamlined and discreet approach, safeguarding client privacy from order to result.
Affordable Pricing and Fast Turnaround in Dahlgren, IL
Balancing cost with swift outcomes, our competitive pricing aligns with quick result delivery for optimal value.
Fast, Accurate, and Reliable Results in Dahlgren, IL
Precision is paramount, and hair follicle tests provide swift and dependable results, detecting substance use with remarkable accuracy. Their well-documented reliability makes them a trusted choice.
Compliance and Peace of Mind for Employers in Dahlgren, IL
Hair follicle testing promotes adherence to workplace drug-free policies, mitigating legal threats and bolstering security.