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Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.
Seeking reliable local options for drug testing? Accredited Drug Testing, Inc. stands as the top choice across the nation, boasting over 20,000 testing centers to provide same-day drug and alcohol testing services, including in Merrimack, NH. Whether your needs include a Department of Transportation (DOT) test, court-ordered evaluations, employment screening, or personal checks, our process is streamlined for convenience and discretion. Our facilities and labs adhere strictly to both federal and state regulations, guaranteeing dependable and exact results. For a seamless experience, contact us at (800) 221-4291 or book an appointment online anytime to discover the nearest testing location. With a commitment to safety, standards, and assurance, Accredited Drug Testing reliably provides timely and trusted outcomes.
Customized Testing Options Available l Discounts available for Bulk Purchases l Onsite Drug Testing Services
In its widespread application across the United States and Merrimack, NH, urine drug testing stands as the predominant method for substance screening and is the exclusive choice approved for DOT-regulated tests under the setting of 49 CFR Part 40. This process accurately detects recent use of substances by examining a urine sample for the presence of drugs, relevant drug metabolites, or alcohol-related biomarkers. Annually, employers, individuals, and judicial entities rely on this standardized, discrete approach to provide certified, court-ready results.
Testing Methods & Collection Process
1. Donor Identity Verification
Verification begins with the presentation of a legitimate government-issued ID by the donor followed by completion of necessary chain-of-custody documentation before testing initiates.
2. Secure Collection Environment
In a monitored restroom environment to inhibit tampering, urine specimens are procured. Standard procedures may include restricting personal items, securing access to water, and dying toilet water.
3. Chain of Custody Documentation
The integrity and legal defensibility of the specimen are maintained by leveraging a federally compliant Chain of Custody Form (CCF) throughout the journey from collection to lab analysis.
4. Temperature & Validity Checks
Specimen temperatures and appearances are immediately evaluated post-collection. Laboratory validity testing extensively covers creatinine levels, pH balance, density, and potential adulterants.
5. DOT Split Specimen
DOT testing requires sample division into two vials: Bottle A for initial screening and Bottle B reserved for challenges. Non-DOT scenarios may involve a single sample collection.
6. Laboratory Screening & Confirmation
Employing SAMHSA-certified laboratories, the testing involves two systematic processes:
7. MRO Verification
A certified Medical Review Officer (MRO) meticulously examines non-negative outcomes, authenticates accuracy, and potentially converses with the donor before disclosing finalized results.
Extended periods might be encountered amid shy bladder incidents, invalid samples, or in exigency of lab verification or donor interaction.
Limitations of Urine Drug & Alcohol Testing
Despite such limitations, urine testing retains its prominence as the most viable and extensively embraced approach for drugs and alcohol testing across the nation.
When it comes to pinpointing prolonged substance use, hair drug and alcohol testing offers an unparalleled laboratory method. Unlike urine testing's focus on recent consumption, hair testing presents an extensive 90-day detection capability by analyzing drug metabolites housed within the hair shaft. This method serves essential uses in workplace protocols, legal proceedings, child custody evaluations, and any scenario necessitating insight into an individual's prolonged substance use.
Testing Methods & Collection Process
How Long Do Hair Test Results Take?
Though results take longer than urine tests, the rigorous procedure ensures enduring reliable detection.
Limitations of Hair Drug & Alcohol Testing
Notwithstanding such constraints, hair analysis is esteemed amongst employers, legal experts, and individuals for tamper-proof and accurate long-term diagnostics.
At Accredited Drug Testing, we offer a variety of robust alcohol and drug testing services tailored to meet the diverse requirements of employers, DOT mandates, legal obligations, and personal needs. Gaining a deeper understanding of how each testing option functions guarantees accurate selection, reliable outcomes, and full compliance with federal and state regulations. Through a nationwide network, accredited laboratories, and professional Medical Review Officers, we are dedicated to delivering precision, trust, and professionalism that Merrimack, NH clients can rely on.
An alcohol urine test is designed to detect recent alcohol consumption by identifying ethanol metabolites present in the urine. This testing method is extensively used in workplace settings, for court-ordered screenings, and post-incident analyses. Despite not measuring immediate impairment, it offers a narrow detection window of a few hours, making it a fast, cost-effective option for screening purposes.
The EtG (Ethyl Glucuronide) urine test is recognized for its sensitivity, being capable of identifying alcohol consumption up to 80 hours after intake. As EtG is a direct metabolite of ethanol, the test is favored by courts, rehabilitation programs, and regulatory agencies for its reliability and extended detection timeframe.
The breath alcohol test gauges present impairment by measuring the alcohol concentration in deep lung air. Performed using DOT-approved breath devices (EBTs), it offers immediate, legally defensible results, fitting for DOT-covered employees, workplaces, post-incident, and suspicion-based testing.
A blood alcohol test directly quantifies the amount of ethanol in the bloodstream, making it one of the most precise methods to assess impairment. It is routinely employed by hospitals, law enforcement, and legal professionals in DUI cases, emergency healthcare, and significant legal inquiries.
The PEth (Phosphatidylethanol) blood test identifies chronic or heavy alcohol usage by recognizing alcohol-specific biomarkers within red blood cells. The test can track use up to 2-3 weeks and is considered an exceptionally reliable marker for long-term alcohol consumption behavior, making it ideal for family law, monitoring, treatment centers, and safety-sensitive pre-employment screenings.
With a hair EtG test, a 90-day detection window is provided by analyzing alcohol metabolites entrenched in the hair shaft, spotting recurring consumption habits rather than single events. Its stability, accuracy, and resistance to abstinence efforts make it a staple in courtroom proceedings, child custody disputes, and extended monitoring initiatives.
Through expert insight, certified nationwide laboratories, and prompt scheduling, Accredited Drug Testing guarantees that each alcohol screening test in Merrimack, NH delivers clear, defensible, and compliant results, aiding individuals and businesses in maintaining informed decisions, managing safety, and adhering to all regulatory requirements.
Accredited Drug Testing provides nationwide drug and alcohol screening solutions, including urine, hair, EtG, PEth, and breath alcohol testing. Backed by SAMHSA-certified laboratories, DOT 49 CFR Part 40 compliance, and scientifically validated testing technology, our services ensure accurate, defensible, and confidential results for employers, courts, and individuals.
Urine tests detect recent use and are the only option approved for DOT testing under 49 CFR Part 40. Hair tests provide a 90-day detection window per the Society of Hair Testing (SoHT). Alcohol testing options, EtG, breath, blood, or PEth. These tests can identify recent use, impairment, or long-term drinking behavior depending on the method.
Urine: 24 - 48 hrs for negatives (SAMHSA guidelines).
Hair: 2 - 5 business days due to multi-step forensic processing (SoHT).
Breath Alcohol: Immediate results using NHTSA-approved EBT devices.
PEth: 3 - 5 days based on forensic toxicology studies.
Lab confirmation using GC/MS or LC/MS is the gold standard per SAMHSA & DOT.
Hair testing is highly tamper-resistant (SoHT).
PEth is considered the most reliable marker of repeated drinking (Journal of Analytical Toxicology).
No. DOT-regulated urine tests require validity checks and chain-of-custody documentation (49 CFR Part 40). Hair tests undergo decontamination and metabolite extraction (SoHT), making them extremely difficult to adulterate.
EtG urine detects alcohol for up to 80 hours (NIH/SAMHSA studies). EtG hair detects chronic alcohol consumption for up to 90 days (SoHT alcohol guidelines).
5 Panel DOT:49 CFR Part 40. Expanded non-DOT panels add benzodiazepines, barbiturates, methadone, oxycodone, MDMA, fentanyl, and more (SAMHSA forensic panel standards).
PEth blood testing identifies long-term and heavy alcohol use for 2 - 4 weeks. Used in child custody, treatment monitoring, and professional compliance programs (CDC & Journal of Analytical Toxicology).
Hair testing does not detect drug use within the past 5 - 7 days. It identifies long-term or repetitive use patterns per SoHT standards.
Yes. Results follow strict chain-of-custody procedures, DOT/SAMHSA requirements, GC/MS or LC/MS confirmation, and MRO review; making them acceptable in court, DOT, and legal settings.
Yes. Accredited Drug Testing offers same-day appointments at 20,000+ locations nationwide, instant testing options, and onsite employer testing with bulk discounts.
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
A very nice company of expertise. The staff will go above to help you out of your situation in a timely matter 👏
Tam Jack - 2/19/2025
They were very fast extremely polite walked you through every detail of the process if you had any questions they had no problems answering
Billy Williams - 2/19/2025
Time was running out before my Cdl got downgraded because of a violation I had on clearinghouse. I couldn't find an employer to send me for my return to duty test, but these guys had my test scheduled and done in the same day! They saved my cdl. Thank you again!
Michael Williams - 12/2/2024
I've had to use this service twice for out of state physicians we've hired and both times it was super easy. Both customer service reps I spoke with were super helpful and courteous. I won't hesitate to use their service again if needed.
Alicia Rau - 6/19/2024
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