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With 39 testing centers in the La Marque area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.
In La Marque, Texas, Accredited Drug Testing offers comprehensive drug testing using hair follicle techniques. When in need of a hair or alcohol test, our specialization in hair testing and nationwide centers ensure accessibility. Generally, 1.5 to 2 inches of hair on the head or body is required. This method can screen for drugs, alcohol/ETG, or tailored testing options.
Nowadays, hair follicle drug testing has gained popularity in various testing methods. It is preferred by employers, courts, and Substance Abuse professionals over traditional urine testing. Ideal for employers enforcing a zero-tolerance policy, it is indispensable for monitoring those on probation. Its main advantage lies in its extended detection window of up to 90 days, observed collection, and high reliability. Yet, urine tests remain optimal for detecting drug use in the last 5 days.
In La Marque, Texas, Accredited Drug Testing offers comprehensive drug testing using hair follicle techniques. When in need of a hair or alcohol test, our specialization in hair testing and nationwide centers ensure accessibility. Generally, 1.5 to 2 inches of hair on the head or body is required. This method can screen for drugs, alcohol/ETG, or tailored testing options.
Nowadays, hair follicle drug testing has gained popularity in various testing methods. It is preferred by employers, courts, and Substance Abuse professionals over traditional urine testing. Ideal for employers enforcing a zero-tolerance policy, it is indispensable for monitoring those on probation. Its main advantage lies in its extended detection window of up to 90 days, observed collection, and high reliability. Yet, urine tests remain optimal for detecting drug 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 is recognized as an effective method for identifying drug and alcohol consumption. The hair strands capture biomarkers, offering an extended history of substance use. When hair is collected close to the scalp, it can provide detection for alcohol and drugs over a period of up to three months. Hair collection is straightforward, highly resistant to tampering, and simple to transport.
A hair sample of 1.5 inches, consisting of approximately 200 strands (comparable to the diameter of a #2 pencil), will yield 100mg of hair, which is optimal for screening and confirmation processes. For EtG testing, additional panels, or when conducting tests that exceed 10 panels, 150mg of hair is advised. It is suggested to use a jeweler’s scale for weighing the sample. If scalp hair is inaccessible, an equivalent quantity of body hair may be utilized. When mentioning head hair, it specifically refers to scalp hair, while body hair includes all other types (facial, axillary, etc.).
Process Overview
The lab procedure for drug testing results involves four primary steps: Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the preliminary phase of incorporating a sample into the lab's database. This step involves confirming the sample's proper sealing and shipment, assigning a random LAN (Laboratory Accessioning Number), and completing any missing information not covered by an electronic chain of custody system.
Screening is a preliminary evaluation to check for substances. It’s a cost-efficient strategy to exclude drug presence in most samples, but a positive screening result needs further confirmation for judicial use. Any samples deemed presumptively positive during Screening must undergo an additional confirmatory test.
For samples indicating a presumptive positive during Screening, additional hair is extracted from the original sample and prepared for the Extraction phase. This stage involves extracting drugs from the hair at significantly lower concentrations than other methods (e.g., urine or oral fluid), thus making hair drug screening a challenging technique.
Confirmation of a positive screening result is executed using GC/MS, GC/MS/MS, or LC/MS/MS methods. Before confirmation, all samples presumed positive undergo washing if necessary. The complete process, from Accessioning to Confirmation, is examined under both the CAP (College of American Pathologists) Hair accreditation and compliance with ISO/IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: The term "hair follicle tests" is misleading, as the test evaluates the hair strand and not the follicles beneath the scalp.
Hair follicle testing stands out in La Marque, TX, due to its superior ability to detect substances over longer periods compared to urine tests. This method provides better accuracy and reliability, uncovering long-term drug use which urine tests might miss. While urine testing serves specific short-term detection needs, the scope of hair testing offers a comprehensive overview.
One of the most compelling benefits of hair follicle testing in La Marque, TX, is its extended detection window. It can trace drug use up to 90 days, offering employers a thorough understanding of an individual's substance usage history, setting it apart from other methods with limited detection periods.
In La Marque, TX, the hair follicle testing method safeguards against sample adulteration, ensuring results are reliable and unquestionable. The difficulty in cheating the system makes it the preferred choice for institutions requiring integrity and dependability in drug testing.
Ensuring convenience, our extensive network of testing sites across La Marque, TX, and beyond makes accessing services quick and hassle-free. With numerous nationwide and local centers, getting necessary tests done is both easy and efficient, accommodating varied client needs.
In La Marque, TX, hair follicle testing is a simple and confidential process. It addresses privacy concerns with ease, offering a smooth ordering and results retrieval experience. Clients benefit from an unobtrusive approach that respects their privacy and confidentiality at every step.
La Marque, TX, businesses appreciate our hair testing services for its affordable pricing and fast turnaround times. Offering competitive rates without compromising on quality, these services provide excellent value, making it accessible to companies of all sizes.
In La Marque, TX, hair follicle drug tests deliver fast, accurate, and reliable results. With state-of-the-art technology, these tests effectively identify substance use patterns. The efficiency of hair testing equips employers with precise data, ensuring informed decisions about potential or current employees.
Employers in La Marque, TX, benefit from hair follicle testing by maintaining compliance with drug-free workplace policies. This testing method reduces legal liabilities and fosters a safer working environment, delivering peace of mind to employers prioritizing safety and compliance.
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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Great experience and great lab. Customer service agent was very helpful.
Jenna Bee - 2/19/2025
I always have a good experience setting up company driver drug screens through ADT. I'm really happy I found them while searching online, they have made my job much easier.
Exodus Heath - 2/13/2025
This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.
Jason Jackson - 7/19/2025