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Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.
Searching for drug testing nearby? Accredited Drug Testing, Inc., highly regarded across the United States, offers same-day testing for drugs and alcohol in over 20,000 locations, including San Mateo, CA. Whether your needs include a DOT-approved test, court-mandated screening, pre-employment drug assessments, or personal inquiries, we ensure a swift, straightforward, and private scheduling experience. Our authorized collection facilities and labs deliver precise, dependable results that adhere to federal and San Mateo, CA state regulations. For a streamlined experience, contact us at (800) 221-4291 or conveniently schedule online anytime to locate an accessible testing center in San Mateo, CA near you. When it comes to prioritizing safety, compliance, and tranquility, Accredited Drug Testing provides reliable results promptly, every single time.
Customized Testing Options Available l Discounts available for Bulk Purchases l Onsite Drug Testing Services
Urine drug testing is the predominant method for drug screens nationwide and stands as the sole test type recognized for DOT-regulated drug testing under federal regulation 49 CFR Part 40. It successfully identifies recent substance exposure through a urine sample, searching for drugs, drug metabolites, and notable alcohol biomarkers. This method's rigorous standardization and confidentiality protocols deliver legally sound and accurate results, suitable for employers or individuals and necessary court orders in San Mateo, CA.
Testing Methods & Collection Process
1. Donor Identity Verification
To begin, the test donor presents a valid government ID and completes chain-of-custody form signatures.
2. Secure Collection Environment
The process involves collecting urine in a monitored restroom setting, eliminating tampering risks. Securing personal items, the water taps, and adding dye to toilet water are standard procedures in San Mateo, CA collections.
3. Chain of Custody Documentation
A federally approved Chain of Custody Form (CCF) is used to maintain test integrity and trace the specimen from collection onward.
4. Temperature & Validity Checks
After collection, the specimen undergoes immediate temperature and appearance checks by the collector. This is followed by lab-based validity tests, measuring specific gravity, creatinine, pH levels, and screening for adulterants.
5. DOT Split Specimen
For DOT tests, the sample is split into two vials: Bottle A for initial evaluation and Bottle B for possible retesting upon dispute. Conversely, non-DOT tests involve collecting a single vial.
6. Laboratory Screening & Confirmation
Certified laboratories, including those in San Mateo, CA, conduct testing in two phases:
7. MRO Verification
A licensed Medical Review Officer (MRO) evaluates any non-negative outcomes, ensuring their veracity through review discussions with donors before final results are officially confirmed.
Extended timeframes might be necessitated by shy bladder conditions, invalid specimen issues, or when further laboratory confirmation along with donor verification becomes necessary.
Limitations of Urine Drug & Alcohol Screening
Despite certain constraints, urine testing prevails as the most viable and extensively implemented screening tool across the nation for drugs and alcohol.
Hair drug and alcohol testing stands out as a highly reliable laboratory technique uniquely qualified to trace long-term substance use patterns. Unlike urine tests, which identify recent consumption, hair testing boasts an extensive 90-day detection period because it examines drug metabolites entwined in the hair shaft. This feature makes hair testing indispensable in workplace programs, court hearings, custody disputes, and any scenario necessitating an extended perspective on an individual's usage history, especially relevant in San Mateo, CA.
Testing Methods & Collection Process
1. Donor Identity Verification
Prior to collecting, a valid government-issued ID is presented by the donor, with all required consent and chain-of-custody documentation being finalized to secure comprehensive paperwork.
2. Hair Collection Procedure
A professional technician extracts a modest hair sample typically amounting to 100-120 strands clipped closely to the scalp. The process generally uses hair from the crown of the head, although body hair may be utilized as a secondary option. This collection process is swift, non-invasive, and conducted under strict supervision.
3. Chain of Custody Documentation
A Hair Drug Test Custody and Control Form is filled out to chronicle the specimen's collection, sealing, and shipment, guaranteeing that results remain legally defensible throughout the process.
4. Laboratory Preparation & Analysis
Upon reaching the lab, the hair sample passes through several forensic phases:
The sample then experiences intensely precise laboratory tests:
5. Metabolite Detection
Over time, as hair grows, it entraps drug metabolites within its shaft, furnishing a stable, extended record of substance usage. Hair testing's resistance to manipulation or cheating is due to its metabolite integration process.
6. MRO Review
A credentialed Medical Review Officer examines all non-negative results, confirming correctness, assessing potential medical explanations, and delivering a conclusive result.
How Long Do Hair Test Results Take?
Although multi-step lab processing extends the analysis duration over urine tests, the consistent accuracy of hair testing is indisputable.
Limitations of Hair Drug & Alcohol Testing
In spite of these limitations, hair testing remains among the most trustworthy methods for chronic substance use verification, favored by employers, legal experts, and individuals in San Mateo, CA seeking valid, tamper-evident outcomes.
.Accredited Drug Testing in San Mateo, CA provides comprehensive alcohol and drug testing choices tailored for employers, DOT, legal, and personal needs. Understanding the functionality and application of each test is vital for making accurate choices, receiving reliable information, and maintaining compliance with both federal and San Mateo, CA regulations. Our broad national network, certified laboratories, and adept Medical Review Officers ensure the accuracy, trust, and professionalism necessary for reliable test results.
An alcohol urine test identifies recent alcohol intake by detecting ethanol metabolites in urine samples. This cost-effective method is common in workplace scenarios, legal obligations, and post-accident assessments, although it doesn't indicate current impairment, it provides a timeframe detection of several hours.
The EtG (Ethyl Glucuronide) urine test offers a more prolonged detection window, revealing alcohol consumption up to 80 hours post-use. As a direct ethanol metabolite, EtG tests are highly precise and routinely utilized by legal systems, rehabilitation centers, and compliance agencies in San Mateo, CA.
A breath alcohol test assesses current impairment levels by determining the alcohol concentration in deep lung air using DOT-certified breath alcohol instruments. These immediate outcomes are legally validated and often mandated for DOT personnel, workplace assessments, post-incident, and suspicion-related contexts.
A blood alcohol test quantifies the amount of ethanol in the bloodstream, considered one of the most reliable methods for confirming intoxication, favored by hospitals, law officials, and San Mateo, CA legal organizations, especially in DUI, emergency, or critical legal situations.
The PEth (Phosphatidylethanol) blood test detects prolonged or heavy alcohol intake by isolating specific alcohol biomarkers, observable up to 2-3 weeks. Strongly indicative of long-term drinking patterns, these tests are implemented in family, legal, and employment sectors demanding safety and security.
The EtG hair alcohol test evaluates alcohol consumption over a 90-day period by inspecting metabolites situated in hair strands, capturing patterns of chronic or continual use rather than sporadic intake. San Mateo, CA courts and monitoring programs rely on this stable and precise method.
Through expert advisory, nationally accredited labs, and speedy scheduling, Accredited Drug Testing guarantees that each alcohol examination method delivers clear, defensible, and compliant results, aiding both individuals and employers to stay informed and aligned with regulatory demands in San Mateo, CA.
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.
Where do I start?!! ADT is truly the best!! I had the pleasure of speaking with Tori today! She was excellent, professional and truly went above and beyond in her kind, compassionate care and commitment to providing me with the best service possible. I was in such a time crunch, but I was able to call, order the test, pay for it over the phone and get the test I needed within the hour. Not only did this put my mind at ease, they saved my job!! I am forever grateful for this team of hard workers, that care, with such great work ethics! Thank you from the very bottom of my heart!!! If you need a drug, alcohol, etc… screening, this team will be your lifesavers!!
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Initially Torrie helped me but I needed to call back. When I called back Kayla stepped in and finished my order. Both were extremely pleasant over the phone and provided wonderful customer service. Kudos to them!
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I ran into a situation because the Guthrie had closed and I had to go to well care and they were right on it. I had no problems when I called to get connected with welcare everything worked out and I didn't even have to wait.they were polite and talked with the receptionist for me once I got them on the phone.
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Trish was amazing and got me through the sytem very fast and swift. I had a hard time hearing her a couple of times, but she was super sweet and helpful throughout the process. Highly recommend her!
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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
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