Drug & Alcohol Testing Near Me - Harlingen, 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

29 Drug-Testing Centers in Harlingen

Minutes Away, Test Today

721 W Harrison Ave0.39 miles

721 W Harrison Ave
Harlingen, TX 78550

1402 S M St Ste 31.16 miles

1402 S M St Ste 3
Harlingen, TX 78550

5505 S Expressway 77 Ste 1031.58 miles

5505 S Expressway 77 Ste 103
Harlingen, TX 78550

1214 Dixieland Rd Ste 81.71 miles

1214 Dixieland Rd Ste 8
Harlingen, TX 78552

1214 Dixieland Rd Ste 81.71 miles

1214 Dixieland Rd Ste 8
Harlingen, TX 78552

1901 Bell St Ste B1.77 miles

1901 Bell St Ste B
Harlingen, TX 78550

512 Victoria Ln Ste 72.49 miles

512 Victoria Ln Ste 7
Harlingen, TX 78550

216 N Ed Carey Dr Ste 14.82 miles

216 N Ed Carey Dr Ste 1
Harlingen, TX 78550

351 N Sam Houston Blvd5.66 miles

351 N Sam Houston Blvd
San Benito, TX 78586

7701 Yvette Cir Ste 216.61 miles

7701 Yvette Cir Ste 2
Mercedes, TX 78570

1221 East 10th St, Suite 101-a17.39 miles

1221 East 10th St, Suite 101-a
Weslaco, TX 78596

1710 E 8th St17.41 miles

1710 E 8th St
Weslaco, TX 78596

624 N Tio Ave Ste B17.46 miles

624 N Tio Ave Ste B
Weslaco, TX 78596

1102 S Airport Bldg 217.52 miles

1102 S Airport Bldg 2
Weslaco, TX 78596

2602 W Expressway 83 Ste 218.31 miles

2602 W Expressway 83 Ste 2
Weslaco, TX 78596

1210 W Expressway 83 Ste B18.31 miles

1210 W Expressway 83 Ste B
Weslaco, TX 78596

300 Lorenaly Dr Ste C18.89 miles

300 Lorenaly Dr Ste C
Brownsville, TX 78526

1601 E Alton Gloor Blvd Ste 10919.43 miles

1601 E Alton Gloor Blvd Ste 109
Brownsville, TX 78526

336 S 8th St20.65 miles

336 S 8th St
Raymondville, TX 78580

165 S 6th St20.79 miles

165 S 6th St
Raymondville, TX 78580

425 E Los Ebanos Blvd Ste 100-10421.10 miles

425 E Los Ebanos Blvd Ste 100-104
Brownsville, TX 78520

1755 W Price Rd21.48 miles

1755 W Price Rd
Brownsville, TX 78520

2031 E Price Rd Ste C21.55 miles

2031 E Price Rd Ste C
Brownsville, TX 78521

864 Central Blvd Ste 90021.99 miles

864 Central Blvd Ste 900
Brownsville, TX 78520

500 Paredes Line Rd Ste 622.05 miles

500 Paredes Line Rd Ste 6
Brownsville, TX 78521

2952 Boca Chica Blvd23.07 miles

2952 Boca Chica Blvd
Brownsville, TX 78521

3302 Boca Chica Blvd Ste 10923.26 miles

3302 Boca Chica Blvd Ste 109
Brownsville, TX 78521

427 E Duranta Ave Ste 10325.20 miles

427 E Duranta Ave Ste 103
Alamo, TX 78516

1200 State Highway 100 Ste 525.64 miles

1200 State Highway 100 Ste 5
Port Isabel, TX 78578

Drug Testing Near Me

Searching for drug testing facilities in your vicinity? Accredited Drug Testing, Inc. stands out as the premier solution across America, offering expeditious drug and alcohol testing services available the same day at more than 20,000 strategically located centers nationwide. Our offerings encompass DOT-compliant screening, judicially mandated assessments, pre-employment drug evaluations, along with testing for individual purposes. Experience a seamless, secure, and private scheduling process with us. Our network of accredited collection sites and laboratories adheres strictly to both federal and state regulations, guaranteeing precision and trustworthiness in our results. Reach us at (800) 221-4291 or you can book online at any hour to locate a nearby drug testing center. In Harlingen, TX or elsewhere, when it comes to safety, policy adherence, and assurance, rely on Accredited Drug Testing for consistent, punctual delivery of results.

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

Urine drug testing reigns as the most popular screening technique throughout Harlingen, TX, and indeed, the nation. Serving as the exclusive method sanctioned for DOT-regulated drug testing, this test is conducted in accordance with 49 CFR Part 40 guidelines. By examining a urine sample, this method detects recent consumption of drugs, drug metabolites, or alcohol biomarkers, ensuring a thorough and confidential screening while delivering legally defensible results that are crucial for employers, individuals, and court-ordered programs.

Testing Methods & Collection Process

1. Donor Identity Verification

The procedure commences with the donor presenting an authorized government identification and signing the necessary chain-of-custody form.

2. Secure Collection Environment

Specimens are collected in a controlled setting, securing all water sources and sometimes dying the toilet water, to mitigate any tampering risks and uphold the sample's integrity.

3. Chain of Custody Documentation

A Chain of Custody Form (CCF) is utilized, following the specimen from its collection to the laboratory, ensuring the test's credibility and defensibility.

4. Temperature & Validity Checks

Post-collection, the collector evaluates the specimen's temperature and appearance. Laboratory analyses include validity testing through parameters such as creatinine levels, pH, specific gravity, and adulterant screenings.

5. DOT Split Specimen

For DOT tests, the specimen is divided into Bottle A for primary screening and Bottle B reserved for retesting if initial results are contested. Non-DOT tests generally collect a single sample.

6. Laboratory Screening & Confirmation

  • Initial Immunoassay Screen: Determines the presence of drug classes.
  • Confirmation Testing: Conducts GC/MS or LC/MS analyses for precise identification of specific drugs/metabolites.

7. MRO Verification

A qualified Medical Review Officer (MRO) evaluates any non-negative results, confirming them before releasing the official results.

How Long Do Urine Test Results Take?

  • Instant Urine Test: Negative results are available the same day, while positives are sent for laboratory confirmation (24-72 hours).
  • Lab-Based Urine Test: Negative results generally take 24-48 hours.
  • DOT Drug Test: Process takes 1-3 business days, contingent upon MRO review and donor contact.
  • Urine EtG Alcohol Test: Typically concludes in 24-48 hours.

Benefits of Urine Drug & Alcohol Testing

  • DOT compliance: The only recognized method meeting regulatory standards for DOT-regulated testing.
  • Optimal for identifying recent use, functioning well in workplaces and post-accident cases.
  • A budget-friendly, rapid-turnaround testing solution.
  • Highly credible, widely accepted by courts, government agencies, and employers.
  • Immediate testing possibilities are accessible for swift screening.
  • Exceedingly accurate with state-of-the-art confirmation testing technology.

Limitations of Urine Drug & Alcohol Testing

Despite some limitations, urine drug testing remains a practical, widely-utilized method for thorough screening in Harlingen, TX and nationwide.

How Hair Drug Testing Works

Hair drug and alcohol testing is esteemed for its capacity to depict substance use over the long haul. Unlike urine tests, which cover recent substance absorption, hair tests offer a 90-day detection timeframe by examining embedded metabolites within the hair shaft. This makes hair analysis especially suitable for workplaces, judicial instances, child custody, and any scenario necessitating a prolonged assessment of an individual's substance history.

Testing Methods & Collection Process

1. Donor Identity Verification

Prior to collection, donors present a valid ID, verifying their identity and completing chain-of-custody protocols to maintain proper documentation in Harlingen, TX.

2. Hair Collection Procedure

A trained collector retrieves a small hair sample, typically 100-120 strands, cut near the scalp for accuracy. In the absence of head hair, body hair may be used. The method is efficient, pain-free, and observed directly to ensure integrity.

3. Chain of Custody Documentation

A Hair Drug Test Custody and Control Form completes the documentation, guaranteeing result reliability and legal defensibility.

4. Laboratory Preparation & Analysis

The lab prepares hair through these steps:

  • Decontamination: Hair is washed to eliminate external contaminants.
  • Cutting/Grinding: Hair is sectioned or ground for substrate preparation.
  • Extraction: Metabolites are chemically extracted from the hair matrix.

The hair undergoes sensitive laboratory procedures:

  • Initial Screening: Immunoassay screens identify drug classes.
  • Confirmation Testing: GC/MS or LC/MS corroborates specific drug traces.

5. Metabolite Detection

Drug metabolites trapped in the evolving hair offer an enduring record of usage. Due to internal incorporation, hair testing is challenging to adulterate.

6. MRO Review

Results are reviewed by a certified Medical Review Officer to verify accuracy, consider medical clarifications, and provide a final outcome.

How Long Do Hair Test Results Take?

  • Standard Hair Test: 2-3 business days post-lab receipt.
  • Complex Panels or Alcohol Testing (EtG/FAEE): 3-5 business days, subject to panel specifics.

As hair testing requires comprehensive lab work, its turnaround exceeds that of urine tests, but its results remain consistently dependable.

Benefits of Hair Drug & Alcohol Testing

  • A 90-day window for extensive substance use detection.
  • Incredibly hard to falsify.
  • Reveals usage consistency or sporadic patterns.
  • Favored for legal, custody, or compliance programs.
  • Non-invasive collection process.
  • Unmatched accuracy from GC/MS or LC/MS confirmation.

Limitations of Hair Drug & Alcohol Testing

  • Poor detection for recent drug intake (5-7 day latency).
  • Greater costs than urine/oral fluid testing.
  • Timing limitations with body hair.
  • Substantial substances incorporate variably by hair type.
  • Not sanctioned for DOT purposes.

Notwithstanding possible limitations, hair testing continues as a crucial strategy for prolonged drug use identification employed in Harlingen, TX.

Alcohol & Drug Testing-How Each Method Works

Exploring Comprehensive Testing Options in Harlingen, TX with Accredited Drug Testing

Accredited Drug Testing extends a broad spectrum of drug and alcohol screenings, custom-designed to cater to various clientele be it employers, the Department of Transportation, legal entities, or individual needs. Familiarity with the workings of each test is pivotal for accurately selecting tests, yielding reliable outcomes, and ensuring compliance with both federal and Harlingen, TX state regulations. Our extensive network, amalgamated with certified labs and adept Medical Review Officers, assures precision, trust, and professionalism in rendering dependable testing solutions.

Alcohol Urine Drug Test

This test spotlights recent alcohol intake by tracing ethanol derivatives within urine samples, highly favored in workplace screenings, mandated court checks, and post-incident evaluations. Although it doesn't measure immediate impairment, it delivers a swift and affordable evaluation method.

ETG Alcohol Test (Urine)

Recognized for its sensitive detection capabilities extending up to 80 hours post-consumption, the EtG urine test finds frequent use in judicial systems, rehab programs, and regulatory monitoring agencies, outperforming traditional methods in timelines and reliability.

Breath Alcohol Test

Targeting active impairment analysis, breath alcohol tests scrutinize deep lung air alcohol levels through DOT-sanctioned devices. Besides DOT-supervised employees, breath tests feature often in workplace, incident-follow-up, and reasonable suspicion testing.

Blood Alcohol Test

Esteemed for pinpointing ethanol concentrations in the bloodstream directly, blood tests hold sway in determining impairment with unmatched accuracy. They serve extensively in hospitals, law enforcement, and legal spheres like DUI probes.

PEth Alcohol Blood Test

Detecting prolonged or substantial drinking by spotting unique alcohol markers in red blood cells, PEth tests widely assist in family law issues, rehabilitation supervision, treatment centers, and safety-centric job pre-screening.

ETG Alcohol Test (Hair)

Providing a comprehensive 90-day usage assessment by examining traces rooted in hair, the EtG hair test discerns recurrent habits, bolstering child custody and prolonged monitoring applications. Courts favor this method for its resistance against temporary abstinence attempts.

Thanks to Accredited Drug Testing's expert consultation, acclaimed laboratories, and swift scheduling, every test is designed to furnish unequivocal, transparent, and regulation-abiding outcomes, fostering security and compliance amongst employers and individuals alike.


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

phone support has been excellent

I have used ADT several times. Their phone support has been excellent, both when putting in the orders and when asking for help to interpret results.

Tee Ess - 12/19/2024

Great experience

Great experience and great lab. Customer service agent was very helpful.

Jenna Bee - 2/19/2025

Quick, knowledgeable and courteous

Quick, knowledgeable and courteous Janelle worked diligently to support me. I am recommending their services to anyone looking.

Greensboro Joseph - 11/19/2024

Super Easy to Schedule

Super easy to schedule and get what you need, weather for a job, personal, or court ordered! I believe I spoke with Justine who was helpful in answering all my questions and stayed on the phone with me until she was sure I was all set and got the emails I needed.

Mandy Ryan - 12/14/2024

A very nice company

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


Sources


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(800) 221-4291