In East Rockingham, North Carolina, Accredited Drug Testing offers comprehensive hair follicle drug testing services. For those needing hair drug or alcohol testing, our expertise lies in hair analysis, with accessible centers throughout the nation. Typically, 1.5 to 2 inches of hair from the scalp or other body parts suffice for testing. Our hair tests can screen for drugs, alcohol/ETG, or be tailored as per requirements.
More recently, hair follicle tests have become a preferred method for drug screening. Employers, courts, and substance abuse experts increasingly mandate these tests over traditional urine-based ones. Companies with strict no-drug policies, legal bodies, and probation departments rely on hair testing because it offers a longer detection period, up to 90 days, collected under supervision and is very challenging to manipulate. However, for drug use detected within the past five days, urine testing remains the most precise.
* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.
When you're searching for hair drug testing near me or hair drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.
Hair analysis has increasingly been acknowledged as an effective instrument for identifying drug and alcohol consumption. Hair retains a long-term record of alcohol and various substances by embedding biomarkers within the developing hair's fibers. When acquired near the scalp, hair offers up to a 3-month observation period for alcohol and drugs. It is easy to gather, hard to tamper with, and convenient to send.
A sample of 1.5 inches from around 200 hair strands (roughly the size of a #2 pencil) nearest to the scalp yields 100mg of hair, which is the optimal quantity for both initial and confirmatory testing. For EtG, supplementary, or tests exceeding 10 panels, 150mg of the sample is advised. It’s suggested to measure the sample using a jeweler's scale. In the absence of scalp hair, a comparable quantity of body hair can be collected. When mentioning head hair, we're specifically referring to scalp hair exclusively. Body hair encompasses all other hair types (facial, axillary, etc.).
Process Overview
The laboratory processing of a drug test result comprises four key stages: Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the initial stage where a sample is processed into a lab's system. This step entails verifying proper sealing and shipment of the sample, assigning a unique LAN (Laboratory Accessioning Number), and completing any additional data entry not obtained by an electronic chain of custody system.
Screening is a rapid initial test for drug presence. Although Screening provides a cost-effective means of ruling out drug consumption in most samples, a confirmed positive screen is essential for legal admissibility. Any samples that test presumptively positive during Screening require further confirmation.
For specimens that test presumptively positive at the Screening phase, additional hair is taken from the original sample and processed for Extraction. At this phase, drugs are extracted from hair at significantly lower concentrations compared to other methods (e.g., urine, oral fluid), making hair drug analysis the most challenging methodology.
Positive screening results undergo Confirmation via GC/MS, GC/MS/MS, or LC/MS/MS. All samples that test presumptively positive undergo washing prior to confirmation as necessary. From Accessioning to Confirmation, the entire lab process is evaluated under both the CAP (College of American Pathologists) Hair designation and ISO / IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Although often called "hair follicle tests", these tests examine the hair strand rather than the follicle underneath the scalp.
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