Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair analysis has emerged as an effective means for identifying substance and alcohol consumption. By capturing biomarkers within the fibers of developing hair strands, hair offers an extended timeline of alcohol and drug usage. When extracted near the scalp, it can provide an estimated span of 3 months for alcohol and drug detection. Hair is straightforward to collect, relatively challenging to tamper with, and convenient to transport.
A 1.5-inch segment consisting of about 200 hair strands (roughly the width of a #2 pencil) nearest to the scalp yields 100mg of hair, which is the optimal sample size for both screening and validation. For EtG, additional tests, or panels exceeding 10, a 150mg sample is advisable. We suggest measuring the sample on a jeweler’s scale. If head hair is unavailable, an equivalent amount of body hair may be used. When mentioning head hair, we mean scalp hair exclusively. Body hair includes all other types (such as facial, underarm, etc.).
Process Overview
The core processes in the lab assessment of a drug test result include Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the initial phase of converting a sample into a laboratory’s database. It encompasses ensuring the sample was properly sealed and dispatched, allocating a random LAN (Laboratory Accessioning Number), and completing any supplemental data input not already provided by a digital chain of custody system.
Screening acts as an initial rapid assessment for substance abuse. While Screening efficiently rules out drug use in the majority of cases, a positive result must be verified for court admissibility. Samples with suspected positive results need further confirmation.
Should a sample show a potential positive in Screening, additional hair from the initial sample is collected and readied for Extraction. Here, substances are extracted from hair at notably lower concentrations compared to other methods (such as urine or oral fluid), which is why hair drug testing is among the most complex methodologies to execute.
Verification of any positive screening outcome is conducted via GC/MS, GC/MS/MS, or LC/MS/MS. All suspected positive samples undergo a cleaning process before confirmation as necessary. The entire laboratory sequence from Accessioning to Confirmation is inspected under both the CAP (College of American Pathologists) Hair designation and the standards ISO / IEC 17025 accreditation.
Advantages of hair drug testing:
Limitations:
Note: While commonly termed "hair follicle tests", the test itself assesses the hair strand, not the hair follicle beneath the scalp
Why Hair Testing Excels
In New Carrollton, MD, hair follicle drug tests provide considerable advantages over urine tests in terms of detection accuracy and reliability. The extended window for substance detection ensures a comprehensive overview while minimizing the risks of evasion.
Extended Detection Period
The ability to detect drug use over an extensive period, up to 90 days, is a primary advantage of hair follicle testing in New Carrollton, MD. This prolonged detection period offers employers a holistic view of an individual's substance use history.
Secure Against Adulteration
Hair follicle testing significantly reduces the potential for sample tampering, ensuring unquestionable reliability in New Carrollton, MD. The supervised collection process enhances confidence in the results, making them more dependable.
Convenient Access Nationwide
With numerous testing locations across New Carrollton, MD, and nationwide, obtaining a hair follicle test is both easy and convenient. Clients benefit from quick and hassle-free access to testing services.
Confidential and Straightforward
The hair follicle testing process in New Carrollton, MD, is designed for simplicity and confidentiality. Clients experience an easy and private journey from ordering to receiving results.
Value and Swift Results
By offering competitive pricing and rapid turnaround times in New Carrollton, MD, hair follicle testing provides substantial value to businesses, ensuring cost-effectiveness without compromising on efficiency.
Precision and Speed in Drug Testing
In New Carrollton, MD, hair follicle drug tests offer a combination of high precision and swift results. The accuracy in substance detection through hair sampling is unmatched, making it the preferred method for reliable assessments.
Employers' Assurance
Employers in New Carrollton, MD, derive peace of mind from the use of hair follicle testing, which guarantees adherence to drug-free workplace policies. This not only safeguards compliance but also heightens safety and reduces legal liabilities.