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At Accredited Drug Testing, we offer comprehensive hair follicle drug testing in Porterville, California. If you're seeking a hair drug or alcohol test, our expertise lies in hair testing, with facilities available in every city across the nation that can conduct these tests. Typically, you need 1.5 to 2 inches of hair from the crown or body for most tests, which can screen for drugs, alcohol/ETG, or other specific options.
The trend in drug testing methods has increasingly shifted towards hair follicle tests in recent years. A growing number of employers, judicial systems, and Substance Abuse specialists now prefer hair drug tests over the traditional urine tests. These tests are favored by employers with strict anti-drug policies, legal systems, and probation management due to their extended detection period, which usually spans up to 90 days. They are collected under supervised conditions and offer a high resistance to manipulation, though urine tests are still preferred for pinpointing use in the last 5 days.
At Accredited Drug Testing, we offer comprehensive hair follicle drug testing in Porterville, California. If you're seeking a hair drug or alcohol test, our expertise lies in hair testing, with facilities available in every city across the nation that can conduct these tests. Typically, you need 1.5 to 2 inches of hair from the crown or body for most tests, which can screen for drugs, alcohol/ETG, or other specific options.
The trend in drug testing methods has increasingly shifted towards hair follicle tests in recent years. A growing number of employers, judicial systems, and Substance Abuse specialists now prefer hair drug tests over the traditional urine tests. These tests are favored by employers with strict anti-drug policies, legal systems, and probation management due to their extended detection period, which usually spans up to 90 days. They are collected under supervised conditions and offer a high resistance to manipulation, though urine tests are still preferred for pinpointing use in the last 5 days.
* 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 testing has emerged as an effective method for identifying drug and alcohol consumption. Hair offers a history of substance use by capturing biomarkers in the fibers as the hair grows. When taken near the scalp, a hair sample can reveal drug and alcohol use over roughly three months. Collecting hair is straightforward, relatively resistant to tampering, and easy to transport.
A sample of 1.5 inches of about 200 hair strands (approximately the diameter of a #2 pencil) adjacent to the scalp provides 100mg of hair, which is the optimal amount for both screening and confirmation. For EtG, additional tests, or tests exceeding 10 panels, a 150mg sample is advised. We suggest using a jeweler’s scale for specimen weighing. If scalp hair isn't available, the equivalent amount of body hair can be used. When referring to head hair, we mean scalp hair only, whereas all other hair forms, like facial or axillary, are considered body hair.
Process Overview
The primary steps in laboratory drug test analysis are Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the first step in processing a sample within a lab system. It ensures the sample's seal and shipment integrity, assigns a LAN (Laboratory Accessioning Number), and completes any remaining data entry not covered by an e-chain of custody.
Screening is a preliminary swift assessment for drug presence. While Screening efficiently negates drug use in most cases, a positive outcome requires validation for legal acceptance. All presumptive positive samples in Screening necessitate a follow-up confirmation.
Should a sample test positive in Screening, additional hair is extracted and prepped for Extraction. Drugs are retrieved from hair at considerably lower levels than in urine or saliva tests, making hair screening a challenging procedure.
Positive results in Screening are verified through GC/MS, GC/MS/MS, or LC/MS/MS, with presumptive positive samples washed beforehand if necessary. The entire lab process, from Accessioning to Confirmation, adheres to both the CAP (College of American Pathologists) standards and ISO / IEC 17025 accreditation.
Advantages of hair drug testing:
Limitations:
Note: While commonly termed "hair follicle tests," the procedure analyzes the hair strand, not the follicle beneath the scalp.
In Porterville, CA, the choice between hair follicle and urine drug testing reveals distinct advantages. Hair testing stands out with its superior detection capabilities and high reliability. Unlike urine tests, it doesn't just focus on recent use but unveils a broader picture of an individual's substance history, proving invaluable for employers and legal offices.
The hair follicle drug test's extended detection window is a major asset for Porterville, CA employers. Capable of detecting drug use over a 90-day period, it affords a wider view of substance use history. This comprehensive perspective helps in making informed decisions about prospective or current employees.
Porterville, CA, trusts the robust resistance of hair follicle tests against tampering. These tests minimize the risk of sample adulteration, delivering credible and objective results. Employers and administrators can have confidence in the accuracy and authenticity of the test outcomes.
Our testing sites, including in Porterville, CA, and nationwide, bring ease and accessibility to drug testing. With a network spread across various locations, the process becomes quicker and more convenient, connecting you to our services just around the corner.
In Porterville, CA, our hair follicle drug testing process remains straightforward and confidential from start to finish. The entire procedure, from ordering to receiving results, emphasizes privacy and simplicity, addressing any concerns about personal data security and ease of use.
Cost-effective pricing and rapid turnaround times are hallmarks of our services in Porterville, CA. By offering competitive pricing and swift delivery of results, we provide substantial value and assurance to organizations, regardless of their size.
Porterville, CA, benefits from the fast, accurate nature of hair follicle drug tests. Known for their precision, these tests detect substance use with remarkable accuracy and incredible speed. They provide reliable results quickly, ensuring employers and individuals have the critical information they need without long waits.
For employers in Porterville, CA, using hair follicle testing enhances compliance with drug-free workplace policies, offering peace of mind. By significantly reducing legal risks and promoting a safer work environment, these tests contribute to a more disciplined and secure organizational atmosphere.
With its multidisciplinary nature, hair testing brings together researchers, scientists, and experts from various domains to develop innovative techniques, explore new methodologies, and address emerging concerns, responding to the ever-evolving challenges of drug abuse, therapeutic drug monitoring, and environmental exposures to pollutants.
The joint meeting of the Society of Hair Testing (SoHT) and the Italian Group of Forensic Toxicologists (GTFI) was organized in Verona, June 8–10, 2022, and hosted by the Legal Medicine team of the Verona University Hospital, directed by Franco Tagliaro together with Federica Bortolotti and Rossella Gottardo.
It served as a prominent platform for knowledge exchange and collaboration, facilitating groundbreaking advancements in hair testing and analysis. In this special issue of Drug Testing and Analysis, we aim to showcase the remarkable manuscripts presented at this significant event, shedding light on the latest research and highlighting the future directions in this field.
Novel Analytical Techniques: The Verona meeting witnessed the unveiling of cutting-edge analytical techniques, offering enhanced sensitivity, selectivity, and accuracy for drug testing. Remarkable advancements in sample preparation, detection, and identification of drug compounds have been presented. The manuscripts in this section presented novel approaches, such as multianalyte methods and on-line preparation which can enable rapid analysis and improve thorough forensic investigations.
Biomarkers and Pharmacokinetics: The identification and validation of reliable biomarkers and pharmacokinetic studies are fundamental aspects of drug testing and analysis. The impact of hair treatments on the oxidation/decomposition of drugs in hair was also explored, as the long-term fate of drugs incorporated in the keratin matrix. Furthermore, the SoHT meeting in Verona featured research on the identification and quantification of alcohol abuse biomarkers, their stability, and their correlation with exposure and other biomarkers.
Forensic Applications and Interpretation: One of the vital objectives of hair testing is its application in forensic investigations and legal proceedings. The SoHT meeting in Verona emphasized the significance of rigorous interpretation of analytical results and the need for standardized protocols. Manuscripts in this section present advancements in forensic toxicology, and have explored the challenges posed by emerging designer drugs and strategies to combat their proliferation. The pitfalls encountered when the exogenous/endogenous nature of a substance is questioned were presented and discussed. The special issue presents also manuscripts that delve into the ethical implications of drug testing in drug facilitated sexual assaults.
Clinical Applications of hair testing are witnessed by the insight on environmental tobacco smoke exposure, assessed by hair analysis in a population of students and the study of in utero-exposure to drugs of abuse through neonatal hair analysis. Exposure to drugs was also important in cases of child abuse/neglect, when the clinical purpose of hair testing merge with its forensic applications.
The legal framework surrounding hair testing and the achievement of guidelines to ensure fairness, accuracy, and confidentiality in drug testing practices have also been discussed,and the SoHT consensus on general hair testing and testing for drugs of abuse was presented at the meeting and published as a Letter to the Editor.
In conclusion, the special issue of Drug Testing and Analysis, featuring manuscripts from the SoHT–GTFI meeting in Verona 2022, reflects the remarkable advancements achieved in this field. The manuscripts provide valuable insights into novel analytical techniques, biomarkers, pharmacokinetics, forensic applications, and ethical considerations. As we embrace these advancements, we pave the way for a safer, healthier society, where drug testing and analysis serve as powerful tools in protecting public health and maintaining integrity in various sectors. The research presented in this special issue will undoubtedly shape the future of drug testing and analysis, fostering collaboration and inspiring further innovation in this crucial area of scientific inquiry.
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I needed a quick drug test for visitation with my children. I called at 6am they answered and set me up with a place a couple miles from my house to go get the test done, that was on Wednesday, I had the results on Friday afternoon and was able to see my kids on Saturday. Thank you for the help!
Mark Broadhead - 2/12/2025
Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.
Tom O - 12/19/2024
Very professional and very quick service to schedule appointments! I am pleased with the services and would definitely recommend using them for any drug testing needs!
Carrie Feerick - 4/19/2025