Drug & Alcohol Testing Near Me - Northlake, TX

Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.  

Employment, DOT, Court Ordered, Personal
Urine | Hair Follicle | Oral Fluid | Blood | ETG

39 Drug-Testing Centers in Northlake

Minutes Away, Test Today

2436 S Interstate 35 E Ste 3368.00 miles

2436 S Interstate 35 E Ste 336
Denton, TX 76205

725 S Interstate 35 E Ste 1888.25 miles

725 S Interstate 35 E Ste 188
Denton, TX 76205

3000 N Interstate 358.25 miles

3000 N Interstate 35
Denton, TX 76201

2501 W Oak St8.43 miles

2501 W Oak St
Denton, TX 76201

3535 S Interstate 35 E Ste 1118.56 miles

3535 S Interstate 35 E Ste 111
Denton, TX 76210

3537 S Interstate 35 E Ste 1118.56 miles

3537 S Interstate 35 E Ste 111
Denton, TX 76210

3751 S Interstate 35 E8.71 miles

3751 S Interstate 35 E
Denton, TX 76210

4234 N Interstate 359.03 miles

4234 N Interstate 35
Denton, TX 76207

1501 N Elm St9.47 miles

1501 N Elm St
Denton, TX 76201

4400 Teasley Ln St 2009.93 miles

4400 Teasley Ln St 200
Denton, TX 76210

608 N Bell Ave Ste A10.20 miles

608 N Bell Ave Ste A
Denton, TX 76209

8501 Justin Rd10.43 miles

8501 Justin Rd
Double Oak, TX 75077

3331 Colorado Blvd10.80 miles

3331 Colorado Blvd
Denton, TX 76210

2817 S Mayhill Rd, Suite 13010.87 miles

2817 S Mayhill Rd, Suite 130
Denton, TX 76208

2401 Westport Pkwy Ste 14011.02 miles

2401 Westport Pkwy Ste 140
Fort Worth, TX 76177

4001 Long Prairie Road, Suite 13012.80 miles

4001 Long Prairie Road, Suite 130
Flowermound, TX 75028

260 N Rufe Snow Dr,13.29 miles

260 N Rufe Snow Dr,
Keller, TX 76248

104 S Main St13.34 miles

104 S Main St
Keller, TX 76248

720 S Main St14.10 miles

720 S Main St
Keller, TX 76248

1559 W Main St14.62 miles

1559 W Main St
Lewisville, TX 75067

3529 Heritage Trace Parkway, Suite 13314.86 miles

3529 Heritage Trace Parkway, Suite 133
Keller, TX 76244

500 N Valley Pkwy, Suite 11015.19 miles

500 N Valley Pkwy, Suite 110
Lewisville, TX 75067

2315 E Southlake Blvd Ste 11015.54 miles

2315 E Southlake Blvd Ste 110
Southlake, TX 76092

540 Surf St15.65 miles

540 Surf St
Lewisville, TX 75067

571 W Main St Ste 11016.01 miles

571 W Main St Ste 110
Lewisville, TX 75507

551 Silicon Dr Ste 10016.08 miles

551 Silicon Dr Ste 100
Southlake, TX 76092

475 W. Elm16.25 miles

475 W. Elm
Lewisville, TX 75057

1650 W College St16.57 miles

1650 W College St
Grapevine, TX 76051

600 W Northwest Hwy Ste E16.60 miles

600 W Northwest Hwy Ste E
Grapevine, TX 76051

1643 Lancaster Dr Ste 22316.78 miles

1643 Lancaster Dr Ste 223
Grapevine, TX 76051

1650 W Chapman Dr Suite 50017.22 miles

1650 W Chapman Dr Suite 500
Sanger, TX 76266

7630 N Beach St, Suite 15617.26 miles

7630 N Beach St, Suite 156
Fort Worth, TX 76137

2355 E Grapevine Mills Cir17.27 miles

2355 E Grapevine Mills Cir
Grapevine, TX 76051

1100 S Main St Ste D17.40 miles

1100 S Main St Ste D
Grapevine, TX 76051

6000 Colleyville Blvd Ste 15017.55 miles

6000 Colleyville Blvd Ste 150
Colleyville, TX 76034

609 Medical Center Dr East Campus17.68 miles

609 Medical Center Dr East Campus
Decatur, TX 76234

1700 W Business 38017.68 miles

1700 W Business 380
Decatur, TX 76234

Po Box 7950317.70 miles

Po Box 79503
Fort Worth, TX 76179

3645 Western Center Blvd18.52 miles

3645 Western Center Blvd
Fort Worth, TX 76137

Drug Testing Near Me

Searching for drug testing facilities nearby? Superior choice, Accredited Drug Testing, Inc., offers same-day drug and alcohol testing services, boasting over 20,000 locations across the United States, including Northlake, TX. Whether you require a DOT-mandated examination, a court-directed screening, a pre-employment drug test, or a test for personal considerations, we provide a quick, discreet scheduling process. Our certified collection sites and labs are committed to delivering precise, trustworthy results, fully aligned with federal and state regulations. Dial (800) 221-4291 or book online anytime to locate a convenient testing center nearby. When relating to safety, compliance, and assurance, Accredited Drug Testing consistently provides reliable results promptly.

Drug and Alcohol Testing Options

Urine Drug Testing Available Panels
5 Panel Drug Test (DOT/NON DOT)
5 Panel + Alcohol Drug Test
5 Panel + ETG Alcohol Drug Test
10 Panel Drug Test
10 Panel + ETG Alcohol Drug Test
12 Panel Drug Test
Hair Drug Testing Available Panels
5 Panel Hair Drug Test
5 Panel + ETG Hair Drug Test
10 Panel Hair Drug Test
12 Panel Hair Drug Test
14 Panel Hair Drug Test
16 Panel Hair Drug Test
Alcohol Drug Testing Available Panels
Alcohol Urine Drug Test
ETG Alcohol Test (Urine)
Breath Alcohol Test
Blood Alcohol Test
Peth Alcohol Blood Test
ETG Alcohol Test (Hair)

Customized Testing Options Available l Discounts available for Bulk Purchases l Onsite Drug Testing Services

How Urine Drug Testing Works

In Northlake, TX, urine drug testing represents the most commonly adopted screening technique across the United States and remains the sole approved method for DOT-regulated testing under 49 CFR Part 40. This technique tests for recent substance use by examining urine samples for drugs, drug metabolites, or alcohol biomarkers. It is conducted within standardized guidelines, ensuring privacy while delivering accurate and legally justifiable results suitable for employers, individuals, and court-mandated programs.

Testing Procedures & Collection Process

  • Verification of Donor Identity: The donor must present a valid government-issued ID and finish mandatory chain-of-custody documents before the commencement of testing.
  • Controlled Collection Environment: Urine samples are collected in a controlled restroom to prevent tampering, with personal items restricted, water sources secured, and toilet water colored to prevent sample alteration.
  • Chain of Custody Documentation: The Chain of Custody Form (CCF), federally recognized, meticulously traces the sample from collection to lab, ensuring result integrity and legal viability.
  • Temperature & Validity Checks: Post collection, both specimen temperature and appearance are checked. The laboratory also undertakes validity testing, including checks for creatinine levels, pH, specific gravity, and the presence of adulterants.
  • DOT Split Specimen: For DOT urine testing, samples are divided into two vials - Bottle A for primary testing and Bottle B reserved for retesting if the donor contests the result. Non-DOT tests use a single vial.
  • Laboratory Screening & Confirmation: Samples processed in SAMHSA-certified labs undergo a two-step testing: Initial Immunoassay Screen for detecting drug classes, followed by GC/MS or LC/MS confirmation testing for precise identification.
  • MRO Verification: A certified Medical Review Officer reviews non-negative findings, verifying their accuracy and discussing potential medical reasons with the donor before finalizing and releasing results.

How Long Do Urine Test Results Take?

Additional time may be required for shy bladder situations, invalid specimens, or if laboratory confirmation or donor contact is needed.

Benefits of Urine Drug & Alcohol Testing

Despite these limitations, urine testing remains the most practical and widely used method for drug and alcohol screening nationwide.

How Hair Drug Testing Works

Comprehensive Insights into Hair Drug and Alcohol Testing in Northlake, TX

Hair-based drug and alcohol testing presents a dependable laboratory option capable of uncovering long-term trends in substance use. Differing from urine tests, which capture recent drug or alcohol activity, hair tests uncover a 90-day usage period by focusing on drug metabolites ingrained within the hair fibers. This thorough approach suits workplace programs, court proceedings, child custody disputes, and occasions necessitating an in-depth examination of an individual's substance involvement over time.

Testing Techniques & Collection Processes

Result Duration: Standard processing usually takes 2-3 business days post-laboratory reception, while complex panels extend to 3-5 business days.

Benefits and Limitations of Hair Testing

Given these factors, hair testing holds prominence nationwide, including Northlake, TX, valued for its thorough insight into sustained substance involvement.

Alcohol & Drug Testing-How Each Method Works

At Accredited Drug Testing, our provision of comprehensive alcohol and drug screening solutions is unmatched, each meticulously crafted to satisfy needs for employers, DOT standards, legal prerequisites, and private testing across Northlake, TX and the whole nation. Understanding the functional dynamics of each screening type guarantees optimal choice, accurate outcomes, and adherence to both federal and local regulations. Our broad network, certified labs, and skilled Medical Review Officers uphold the necessary precision, dependability, and professionalism essential for reliable testing results.

Alcohol Urine Drug Test

An alcohol urine test identifies recent alcohol intake by tracing ethanol byproducts in urine samples and is regularly employed in workplaces, legal orders, and post-incident settings. Though it doesn't determine present intoxication, it offers a prompt, cost-efficient detection timeframe over a few hours, making it ideal for swift screenings.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test exhibits utmost sensitivity, able to observe alcohol use up to 80 hours post-consumption. Given its association with the ethanol metabolite, courts, rehabilitation camps, and compliance overseers, prefer this method for its extended detection range compared to typical urine tests, renowned for accuracy and dependability.

Breath Alcohol Test

A breath alcohol test examines current impairment by capturing alcohol concentration in deep lung air. These tests employ DOT-sanctioned breath analyzers (EBTs) for immediate, defensible results. Breath testing is obligatory for DOT-regulated employees, frequently applied in workplaces, post-accident evaluations, and reasonable suspicion situations.

Blood Alcohol Test

A blood alcohol test accurately gauges the ethanol content in the bloodstream and is lauded for its precision, frequently relied upon by medical facilities, law enforcement, and legal professionals especially critical in DUI scenarios, emergency response, and high-stakes legal inquiries.

PEth Alcohol Blood Test

The PEth (Phosphatidylethanol) blood test pinpoints lasting or intense alcohol consumption by isolating alcohol-indicative biomarkers inside red blood cells. With the ability to detect activity up to weeks later, PEth is considered a central factor to confirm sustained drinking behavior, utilized in family law, monitoring, recovery centers, and safety-critical employment screenings.

ETG Alcohol Test (Hair)

The EtG hair alcohol test enjoys a 90-day detection reach, by dissecting alcohol metabolites embedded inside the hair cuticle. It traces repeated or ongoing alcohol usage rather than transient consumption. Judicial systems, custody battles, and extensive observation programs appreciate hair EtG testing for its consistency, accuracy, and resistant properties to feigned short-term abstinence.

Through expert advice, profitable, certified laboratories, and rapid scheduling, Accredited Drug Testing ensures every alcohol screening method delivers defensible, coherent, and regulation-abiding results, supporting individuals and employers in maintaining security, assurance, and comprehensive statutory conformity.


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.

Frequently Asked Questions

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.

Customer Reviews

This is by far the easiest

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

Super Helpful

Detricia was super helpful in making sure that the drug test is sent my worker for was the right one I needed for my company to be compliant with my customers drug test requirements.

Kevin Howell - 12/19/2024

Reception is kind and helpful

Reception is kind and helpful , everything quick and simple , best urgent care

Yusuf Narmuradov - 11/19/2024

Super helpful and courteous

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

I love the customer service

I love the customer service. The lady was patient enough to help me book my appointment with ease and ensuring I get the location that's best for me. Keep up the good work!

Elizabeth Chiaka - 9/19/2024


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Northlake Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Northlake, TX locations—results you can trust, every time!

Northlake Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Northlake, TX.

Northlake Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Northlake, TX.

Northlake 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Northlake, TX employers and individuals nationwide.

Northlake 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Northlake, TX workplace and personal testing needs.

Northlake On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Northlake, TX workplace compliant.

Northlake DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Northlake, TX drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.

(800) 221-4291