Our automated scheduling system is available 24/7. Order your test online and receive your donor/registration pass by email. Click Here
Same Day Service
At our 30 testing locations in the Portsmouth, Rhode Island region, Accredited Drug Testing delivers all-encompassing drug and alcohol assessments. Our services encompass both DOT and non-DOT urine drug screenings, breath alcohol evaluations, EtG alcohol testing, and hair drug analyses, catering to personal, employment, and judicial purposes. In Portsmouth, RI, we provide speedy result options and lab analyses certified by SAMSA, with same-day availability, and most local testing sites are a short commute from home or work. We also provide Occupational Health Testing, Clinical Testing, and Background Verifications.
Contact us at (800) 221-4291 or sign up online. You can easily pick your test type and find a nearby center—accessible for personal use, employment, or third-party testing. Arranging a test is quick and simple; reach out to our scheduling desk or book your appointment online anytime through our 24/7 service. Our seamless process ensures hassle-free drug testing arrangement in the Portsmouth area.
* 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 drug testing near me or 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.
At our Portsmouth drug testing collection sites, Accredited Drug Testing provides one of the widest selections of drug and alcohol testing services available. Whether you're an employer, attorney, court, or private individual, we offer both DOT and non-DOT testing options—ranging from rapid tests to comprehensive lab-based screenings—capable of detecting nearly any substance.
DOT Drug Testing and Requirements
DOT Employer Drug Policy Development
If you're an employer needing to test 25 or more employees and looking to save time and money, we offer mobile on-site drug testing where we come to you. Call us today for more information.
In Portsmouth, located in Newport County, approximately 8% of residents have reported misuse of prescription drugs at least once in their lifetime.
Portsmouth, Newport County, saw a 12% increase in emergency room visits related to drug overdoses from the previous year.
In Newport County, where Portsmouth is situated, opioid-related deaths made up about 75% of all drug-related fatalities in the last reported year.
Approximately 15% of teenagers in Portsmouth, Newport County, have tried marijuana, as reported in the most recent survey.
Portsmouth, Newport County, has seen a 5% increase in admissions to substance abuse treatment programs in recent years.
Drug elimination is the sum of the processes of removing an administered drug from the body. In the pharmacokinetic ADME scheme (absorption, distribution, metabolism, and excretion), it is frequently considered to encompass both metabolism and excretion. Hydrophobic drugs, to be excreted, must undergo metabolic modification making them more polar. Hydrophilic drugs, on the other hand, can undergo excretion directly, without the need for metabolic changes to their molecular structures.
Although many sites of metabolism and excretion exist, the chief organ of metabolism is the liver, while the organ primarily tasked with excretion is the kidney. Any significant dysfunction in either organ can result in the accumulation of the drug or its metabolites in toxic concentrations.
A variety of other factors impact elimination — intrinsic drug properties, such as polarity, size, or pKa. Also other factors include genetic variation among individuals, disease states affecting other organs, and pathways involved in the way the drug distributes through the body, such as first-pass metabolism.
Drug elimination is the removal of an administered drug from the body. It is accomplished in two ways, either by excretion of an unmetabolized drug in its intact form or by metabolic biotransformation followed by excretion. While excretion is primarily carried out by the kidneys, other organ systems are involved as well. Similarly, the liver is the primary site of biotransformation, yet extrahepatic metabolism takes place in a variety of organ systems affecting multiple drugs.
Given the multiple organ systems and the variety of metabolic transformations present, drug elimination can entail a significant degree of complexity. Hydrophilic drugs are typically directly excreted by the kidneys, while hydrophobic drugs undergo biotransformation before excretion. The purpose here is twofold – biotransformation serves both detoxify the exogenous substances as well as to increase their hydrophilicity, ensuring their elimination via the kidneys.
Two broad metabolic pathways of hepatic drug transformation exist. Phase I is the direct modification of the target molecule, whereas phase II entails conjugation of the target to a polar molecule of low molecular weight. Phase I prepare the drug to enter phase II, but single-phase metabolism also exists.
Phase I involves oxidation, reduction, and hydrolysis of the exogenous molecule. These reactions are accomplished by hepatic microsomal enzymes, which reside in the smooth endoplasmic reticulum of the hepatocytes. Best known among them is the cytochrome P450 system, whose enzymes are predominantly involved in oxidative metabolism. Within the cytochrome P450 family (CYP), the enzyme responsible for the metabolism of more than 50% of existing drugs is the CYP3A4. Its activity encompasses various classes of medications, including opioids, immunosuppressants, antihistamines, and benzodiazepines. The enzymes can also be induced or inhibited by a variety of substances they interact with, including pharmaceuticals. The increase in metabolic activity with CYP induction results in a diminished activity of drugs targeted by that particular isoform. Conversely, CYP inhibition will result in increased drug plasma concentration, potentially leading toxicity. The CYP3A4 is induced by phenytoin, phenobarbital, and St. John's wort, while diltiazem, erythromycin, and grapefruit inhibit it. Caution is, therefore, necessary when administering CYP3A4-metabolized drugs in the presence of any of the inhibitors or inducers.
Phase II consists of covalent bonding of polar groups to nonpolar molecules to render them water-soluble and allow renal or biliary excretion. Target molecules enter phase II directly or via initial processing through phase I. A variety of polar adjuncts is transferred, including amino acids, glucuronic acid, glutathione, acetate, and sulfate. Glucuronidation is one of the major pathways of phase II biotransformation. The UDP-glucuronosyltransferase (UGT) enzyme family performs this activity. Typically, glucuronide derivatives possess less or no activity of the original drug, but in some cases, pharmacologically active compounds result. Morphine-6-glucuronide is a phase II metabolite of morphine with significant analgesic activity. As with the CYP enzymes, inducers, and inhibitors of phase II, enzymes exist and may influence the efficacy of drugs that rely on conjugation before excretion.
The first-pass effect is a feature of hepatic metabolism that also plays a role in the elimination of multiple drugs. Here, the enteric consumed drugs are exposed directly to the liver via the portal vein, where they undergo biotransformation before entering the systemic circulation. This activity reduces the bioavailability and needs to be factored into the dose administered to the patient. Intravenously administered drugs are not subject to the first-pass effect.
Extrahepatic drug metabolism takes place in the GI tract, kidneys, lungs, plasma, and skin.
Renal excretion completes the process of elimination that begins in the liver. Polar drugs or their metabolites get filtered in the kidneys and typically do not undergo reabsorption. They subsequently get excreted in the urine. Urinary pH has a significant impact on excretion, as drug ionization changes depending on the alkaline or acidic environment. Increased excretion occurs with weakly acidic drugs in basic urine and weakly basic drugs in acidic urine.
Excretion in the bile is another significant form of drug elimination. The liver can actively secrete ionized drugs with a molecular weight greater than 300 g/mol into bile, from where they reach the digestive tract and are either eliminated in feces or reabsorbed as part of the enterohepatic cycle.
Other pathways of excretion include the lungs, breast milk, sweat, saliva, and tears
In Portsmouth, RI, employers often implement strict drug testing policies to ensure a safe workplace. Many follow guidelines suggested by the U.S. Department of Labor, which advises on best practices for maintaining a drug-free environment.
Several employers in Newport County have adopted random drug testing policies, especially in industries that require heightened safety such as construction and manufacturing. These actions align with recommendations from the Occupational Safety and Health Administration (OSHA).
Moreover, local businesses collaborate with healthcare providers to offer employee assistance programs, aiming to support workers dealing with addiction issues while ensuring compliance with federal regulations.
The government of Portsmouth, RI, in collaboration with the Rhode Island Department of Health, has initiated several community programs aimed at reducing drug abuse. This includes educational campaigns and support for treatment facilities.
Additionally, Newport County authorities are working with the Substance Abuse and Mental Health Services Administration (SAMHSA) to increase funding for local outreach programs and improve public health responses to the drug epidemic.
In recent years, Portsmouth, RI, has witnessed a series of local drug busts that have highlighted the community's ongoing battle against illegal substance distribution. Law enforcement agencies have ramped up their efforts, leading to several successful operations targeting known hotspots. These actions underscore the dedication of local authorities to maintaining Portsmouth's safety and underlining the critical need for community awareness and support.
One significant event involved a coordinated operation between the Portsmouth Police Department and federal agencies, resulting in the dismantling of a drug trafficking ring operating across Newport County. The bust led to multiple arrests and the seizure of substantial quantities of narcotics, illustrating the collaborative effort required to tackle drug-related crime effectively in this region.
Portsmouth's local government has been proactive in addressing drug-related incidents by implementing educational programs aimed at prevention. These initiatives target young individuals, providing them with necessary information about the dangers of drug use. The community's involvement in these programs has been pivotal, as collective efforts continue to build a solid foundation for the future resilience of the town.
Community forums in Portsmouth offer an opportunity for residents to voice concerns and stay informed about the latest developments in combating drug-related problems. These meetings foster open dialogue between law enforcement officials and citizens, creating a unified front against the growing challenges posed by drug activity. Greater transparency and regular updates have been well received by Portsmouth's residents.
Amidst these ongoing efforts, public vigilance remains a key component in Portsmouth's strategy to combat drug issues. Residents are encouraged to report suspicious activities to local authorities, enhancing communal ties and reinforcing the shared responsibility in safeguarding the community against drug proliferation. This united approach has cultivated a stronger, more resilient Portsmouth.
Accredited Drug Testing offers fast, reliable employment screening services in Portsmouth, RI. Trusted by employers nationwide for accurate results and exceptional service.
Rhode Island DOT/Non DOT Physicals
CODAC Behavioral Healthcare
Rhode Island Prevention Coalition
Prevent Substance Abuse Coalition of Newport County
RI Department of Behavioral Healthcare, Developmental Disabilities & Hospitals
RI Hospital Addiction Services
Rhode Island o-drug Information
Family Health Services of Rhode Island
Carelon Behavioral Health
Quickly find trusted local drug testing centers in Portsmouth, RI — fast, convenient, and reliable every time!
Quickly find a local DOT drug testing center in Portsmouth, RI — fast, reliable, convenient nationwide service!
DNA testing for legal and non-legal purposes including child support, and child custody around Portsmouth, RI.
Including specimen collector training, DER training, reasonable suspicion training and much more in Portsmouth, RI.v
Get fast, accurate hair drug testing at our convenient Portsmouth, RI locations—results you can trust, every time!
Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Portsmouth, RI.
Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Portsmouth, RI.
Accurate 5 panel drug testing with fast, confidential results—trusted by Portsmouth, RI employers and individuals nationwide.
Comprehensive 10 panel drug testing with fast, reliable results—trusted for Portsmouth, RI workplace and personal testing needs.
Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Portsmouth, RI workplace compliant.
Certified DOT physicals with quick, reliable exams to keep Portsmouth, RI drivers compliant and on the road with confidence.
Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.
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
Everything was great, the staff was very polite. Thank you.
Olga Petrova - 9/19/2024
The visit here is always the best . The place is always really clean. The employees are super courteous, very polite, and professional. This is the only drug lab I like to go do my drug and alcohol test. I would like to tell them thank you so much for thier excellent performance and job
Eli Gonzalez - 1/4/2025