Urine| Hair Follicle | Oral Fluid | Blood | ETG
Considered a robust method, hair testing plays a crucial role in identifying drug and alcohol consumption. The strands of hair capture biomarkers within their fibers, offering a historical record of usage extending over time. When samples are taken near the scalp, they can reveal drug and alcohol use over a period of up to three months. Hair is straightforward to collect, challenging to tamper with, and convenient for shipping.
A 1.5-inch segment comprising approximately 200 strands of hair (comparable to a #2 pencil's width) nearest to the scalp yields 100mg, the perfect sample for both preliminary and confirmatory testing. For EtG, additional analyses, and tests above 10 panels, it's advisable to use 150mg of the sample. It's suggested to weigh the hair sample on a jeweler’s scale for accuracy. In instances where scalp hair is not accessible, an equivalent amount of body hair can be collected. When mentioning head hair, it specifically refers to scalp hair. Conversely, body hair encompasses all other types (such as facial, axillary, etc.).
Process Overview
The laboratory process of handling a drug test result consists of four major steps: Accessioning, Screening, Extraction, and Confirmation.
Accessioning includes the initial incorporation of the sample into the laboratory system, involving confirmation of the sample’s proper sealing and shipment, allocation of a random LAN (Laboratory Accessioning Number), and fulfillment of any missing data entry not provided by an electronic chain of custody.
Screening involves conducting a preliminary review for potential drugs of concern. While Screening is an economical method to rule out drug presence in most samples, a positive indication needs a Confirmation for legal acceptability. Any samples indicated as positive during Screening necessitate a secondary confirmation.
In cases of indicative positives during Screening, extra hair is extracted from the initial collection for the Extraction stage. During this phase, drugs are isolated from hair at concentrations considerably lower than those in other sampling methods (e.g., urine or oral fluid), which accounts for the higher complexity of performing hair drug testing compared to other methods.
Drug presence confirmation from any positive screen is undertaken using techniques such as GC/MS, GC/MS/MS, or LC/MS/MS. All samples confirming positive results undergo a thorough wash before final confirmation. The comprehensive laboratory procedure from Accessioning to Confirmation adheres to both the CAP (College of American Pathologists) Hair designation and conforms to ISO / IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Although commonly referred to as "hair follicle testsâ€, the test evaluates the hair strand itself rather than the follicle located under the scalp.
Why Hair Follicle Testing Beats Urine Testing in Blackford, KY
Advanced Detection Accuracy
Extended Detection Window in Blackford, KY
A Detailed Substance History
Tamper-Resistant Testing Method in Blackford, KY
Uncompromised Testing Security
Convenient Nationwide Testing Locations and Local Locations in Blackford, KY
Seamless and Accessible Testing
Simple, Confidential Process in Blackford, KY
Effortless and Private
Affordable Pricing and Fast Turnaround in Blackford, KY
Cost-effective Solutions
Fast, Accurate, and Reliable Results in Blackford, KY
Unmatched precision with Hair Follicle Testing
Compliance and Peace of Mind for Employers in Blackford, KY
Workplace Safety and Legal Compliance