Urine| Hair Follicle | Oral Fluid | Blood | ETG
Hair evaluation has emerged as an effective instrument for identifying substance and alcohol consumption. Hair offers a prolonged record of alcohol and other substances by capturing biomarkers within the fibers of evolving hair strands. When taken close to the scalp, it can yield approximately a 3-month detection period for alcohol and other drugs. Hair collection is straightforward, fairly tamper-resistant, and convenient to transport.
A 1.5-inch length of around 200 hair strands (comparable to the width of a #2 pencil) near the scalp will provide 100mg of hair, the optimal sample for analysis and confirmation. For EtG, additional assessments, or tests exceeding 10 panels, 150mg of the specimen is advised. We suggest weighing the sample using a jeweler's scale. If scalp hair isn't accessible, a comparable quantity of body hair may be gathered. The term "head hair" specifically refers to scalp hair, while "body hair" includes all other types (facial, axillary, etc.).
Process Overview
The laboratory processing of a drug test outcome involves four primary stages: Accessioning, Screening, Extraction, and Confirmation.
Accessioning entails the initial handling of a sample within a laboratory's system. This step includes ensuring the sample was sealed and dispatched correctly, allocating a random LAN (Laboratory Accessioning Number), and completing any supplementary data entry absent in an electronic chain of custody system.
Screening serves as an initial rapid evaluation for detectable drugs. While Screening efficiently rules out drug use in most samples, a positive screen necessitates confirmation for court proceedings. Samples that are presumptively positive during Screening mandate a follow-up confirmation.
If a sample tests presumptively positive during Screening, additional hair is sourced from the original specimen and prepared for Extraction. In this phase, substances are extracted from hair at a significantly lower concentration than through other methods (e.g., urine or oral fluid), making hair drug screening the most intricate methodology.
Any positive screening result is verified via GC/MS, GC/MS/MS, or LC/MS/MS. Presumptive positive samples undergo washing before confirmation if necessary. The complete laboratory process from Accessioning to Confirmation is evaluated under the CAP (College of American Pathologists) Hair category and accredited to ISO / IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: Although commonly termed as "hair follicle tests", the test examines the hair strand, not the follicle beneath the scalp.
The advantages of hair follicle testing over urine tests are compelling, particularly in Rolla, MO.
With an extensive detection timeframe, hair follicle tests in Rolla, MO offer a substantial advantage.
Hair follicle tests in Rolla, MO have a robust resistance to tampering, fortifying test reliability.
Convenience is paramount with our nationwide testing facilities, including those in Rolla, MO.
In Rolla, MO, enjoy a straightforward and private hair testing process.
Rolla, MO offers attractive pricing options with hair follicle testing alongside rapid turnaround.
In Rolla, MO, the hair follicle drug tests stand out for their fast and reliable outcomes.
Offering compliance and peace of mind, hair follicle testing in Rolla, MO aligns with drug-free workplace policies.