Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair analysis is now acknowledged as a robust method for detecting drugs and alcohol. Hair captures a long-term history of these substances by embedding biomarkers within the fibers of the growing strand. Collected near the scalp, it can reveal substance use over a span of up to three months. Hair sampling is easy to obtain, relatively resistant to tampering, and convenient for transport.
A 1.5-inch hair segment, comprising about 200 strands (roughly equivalent to a #2 pencil), yields 100mg, which is the optimal sample for testing. For EtG extensions or multi-panel tests exceeding 10, 150mg of hair is preferred. Using a jeweler’s scale for accuracy is advised. If scalp hair cannot be collected, an equal quantity of body hair is an alternative. 'Head hair' strictly refers to scalp hair, while 'body hair' encompasses other types like facial and axillary hair.
Process Overview
The four core stages of lab processing for drug testing results are Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the initial stage where a sample is logged into the lab's system. It involves confirming proper sealing and shipping of the sample, generating a random LAN (Laboratory Accessioning Number), and performing any additional data handling required outside of electronic chain of custody systems.
Screening is a preliminary assessment for substance abuse. Although it provides a cost-effective preliminary analysis, further confirmation is necessary for legal acceptance of positive results. Samples testing presumptive positive in Screening require a confirmatory test.
For presumptive positive results during Screening, additional hair is extracted and processed for an in-depth Extraction phase. Drugs are isolated from hair at significantly lower concentrations compared to other matrices like urine or oral fluid, underscoring the complexity of hair drug screening.
GC/MS, GC/MS/MS, or LC/MS/MS methodologies are employed to validate any positive screening outcomes. Pre-confirmation cleaning of presumptive positives is performed as needed. The whole process, from Accessioning through Confirmation, is conducted under the CAP (College of American Pathologists) Hair designation, aligned with ISO / IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: Though commonly called "hair follicle tests", they actually examine the hair strand rather than the follicle below the scalp.
Hair follicle testing in Horatio Gardens surpasses urine analysis by offering enduring detection accuracy. Benefits include:
Hair follicle tests in Horatio Gardens provide a prolonged detection period of up to 90 days, affording employers a detailed view of a candidate’s substance history. Benefits include:
Horatio Gardens hair follicle testing drastically minimizes the likelihood of tampering, ensuring accuracy. Key highlights:
With extensive testing centers nationwide and in Horatio Gardens, IL, getting tested is easy and convenient.
In Horatio Gardens, the hair follicle testing process remains both simple and confidential.
Horatio Gardens offers affordable hair follicle testing and swift results. Distinct advantages include:
In Horatio Gardens, IL, hair follicle drug tests are celebrated for their speed and reliability. Highly precise, these tests spot substance usage with remarkable accuracy.
In Horatio Gardens, hair follicle testing promotes compliance and tranquility among employers. Key points: