Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair testing is now regarded as an effective method for identifying drug and alcohol consumption. Hair can provide a long-term record of substance use by preserving biomarkers within the hair strand's fibers. When gathered close to the scalp, hair offers up to a 3-month period for detecting alcohol and drug usage. It is easy to collect, relatively tamper-proof, and convenient to transport.
A 1.5-inch segment of around 200 hair strands (akin to the thickness of a #2 pencil) nearest to the scalp will yield 100mg of hair, the recommended amount for screening and confirmation. For EtG tests, additional screenings, and tests over 10 panels, 150mg of the sample is suggested. We advise using a jeweler’s scale to weigh the sample. If scalp hair is unavailable, equivalent body hair may be used. By 'head hair', we mean only scalp hair. 'Body hair' includes other types such as facial and axillary hair.
Process Overview
The primary stages of laboratory processing for a drug test result include Accessioning, Screening, Extraction, and Confirmation.
Accessioning denotes the initial stage of sample integration into a lab's system. This step encompasses confirming proper sample sealing and shipment, assigning a random LAN (Laboratory Accessioning Number), and completing any supplementary data entry absent from an electronic chain of custody system.
Screening is a preliminary quick assessment for drug abuse. While it is a cost-efficient measure to rule out drug use for most samples, a positive screening must be verified for legal acceptability. Samples with presumptive positive results from Screening require further confirmation.
Should a sample test presumptively positive during Screening, additional hair is extracted from the original sample in preparation for Extraction. In this phase, drugs are isolated from hair at significantly lower concentrations than other methods (e.g., urine or oral fluid), rendering hair drug testing a complex technique to execute.
Confirmation of positive screening outcomes is performed through GC/MS, GC/MS/MS, or LC/MS/MS. All samples with presumptive positive findings are cleaned before confirmation as necessary. The entire lab procedure from Accessioning to Confirmation undergoes review under CAP (College of American Pathologists) Hair designation and ISO / IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Although frequently termed "hair follicle tests," the analysis examines the hair strand itself, not the follicle beneath the scalp.
In Summerfield, TX, hair follicle testing stands out for its superior detection compared to urine testing. With extended analysis up to 90 days, it offers reliable accuracy that urine tests may miss.
Employers in Summerfield, TX, benefit from hair testing's robust verification methods over urine tests. They ensure precise insight into drug involvement, surpassing the limited detection of traditional tests.
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In Summerfield, TX, hair follicle tests stand out for their tamper-resistant nature. Providing solid results, they significantly cut the risk of sample adulteration, ensuring trust in the outcomes.
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Experience the efficiency and accuracy of hair follicle drug tests in Summerfield, TX. Known for their high level of precision, these tests are crucial in swiftly identifying substance use. Offering fast and dependable results, they enable informed decision-making.
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