Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing is increasingly recognized as an effective method for identifying drug and alcohol consumption. Hair offers an extensive timeline of alcohol and drug usage by encapsulating biomarkers in the hair's growing strands. When taken near the scalp, hair can offer up to a 3-month detection period for alcohol and drugs. Hair is straightforward to gather, relatively tamper-resistant, and simple to transport.
A 1.5-inch segment of roughly 200 hair strands (approximately the size of a #2 pencil) closest to the scalp provides 100mg of hair, which is the preferred quantity for analysis. For EtG, additional tests, and/or panels exceeding 10, 150mg of the specimen is advised. It's advisable to measure the sample using a precision scale, like a jeweler's scale. In the event scalp hair is unavailable, a comparable amount of body hair can be collected. References to head hair specifically mean scalp hair. Body hair refers to any other hair types (such as facial or axillary).
Process Overview
There are four primary stages in the lab processing of a drug test result: Accessioning, Screening, Extraction, and Confirmation.
Accessioning includes the initial handling of a sample into a lab's system. This process ensures the sample was correctly sealed and shipped, assigns a random LAN (Laboratory Accessioning Number), and completes any extraneous data entry needed in absence of an electronic chain of custody system.
Screening consists of a preliminary examination for substances of abuse. Though Screening is an economical way to exclude drug use in most samples, a positive result requires Confirmation to be valid in legal settings. Presumptively positive samples in Screening require further confirmation.
If a sample is flagged as presumptively positive during Screening, more hair is taken from the original specimen for Extraction. At this stage, drugs are separated from hair at concentrations lower than other techniques (such as urine or oral fluid), which makes hair drug testing one of the most challenging methods.
Confirmation for any positive screen is performed using GC/MS, GC/MS/MS or LC/MS/MS. All presumptively positive samples undergo washing before Confirmation if required. The entire lab process from Accessioning to Confirmation is assessed both by the CAP (College of American Pathologists) Hair designation and accredited to ISO/IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: Although often termed as "hair follicle tests", the actual test examines the hair strand, not the hair follicle beneath the scalp
Hair follicle testing offers greater detection accuracy in Bell Hill, WA, compared to urine tests.
The method provides reliable information by capturing a longer history of substance use. For employers and professionals, this translates to enhanced trust in the results, supporting more informed decisions regarding hiring and workplace policies.
In Bell Hill, WA, hair follicle testing is unmatched in capturing an extended history of drug use, offering insights up to 90 days back.
In Bell Hill, WA, the robustness of hair follicle tests is evident in their resistance to tampering. Unlike urine tests, where sample adulteration is a common concern, hair samples remain largely unaffected by outside interference.
Convenience is key in Bell Hill, WA, with Accredited Drug Testing's nationwide and local centers.
These facilities enable swift and hassle-free testing service access.
In Bell Hill, WA, the process of opting for a hair follicle test is both simple and confidential.
In Bell Hill, WA, our competitive pricing structure for hair follicle tests ensures affordability without compromising quality.
In Bell Hill, WA, hair follicle drug tests stand out for their precision and quick turnaround. This testing method provides highly accurate results in detecting substance use, which is vital for employers aiming for reliable screening.
With advanced technology, hair testing ensures dependable outcomes, crucial for maintaining a drug-free workplace environment and making informed employment decisions.
Employers in Bell Hill, WA, gain peace of mind with hair follicle testing, ensuring compliance with drug-free workplace policies.