Drug & Alcohol Testing Near Me - Weslaco, 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

37 Drug-Testing Centers in Weslaco

Minutes Away, Test Today

2602 W Expressway 83 Ste 20.12 miles

2602 W Expressway 83 Ste 2
Weslaco, TX 78596

1210 W Expressway 83 Ste B0.12 miles

1210 W Expressway 83 Ste B
Weslaco, TX 78596

624 N Tio Ave Ste B0.95 miles

624 N Tio Ave Ste B
Weslaco, TX 78596

1710 E 8th St1.20 miles

1710 E 8th St
Weslaco, TX 78596

1102 S Airport Bldg 21.20 miles

1102 S Airport Bldg 2
Weslaco, TX 78596

1221 East 10th St, Suite 101-a1.30 miles

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

7701 Yvette Cir Ste 25.46 miles

7701 Yvette Cir Ste 2
Mercedes, TX 78570

427 E Duranta Ave Ste 1037.16 miles

427 E Duranta Ave Ste 103
Alamo, TX 78516

220 S Cage Blvd Ste C12.23 miles

220 S Cage Blvd Ste C
Pharr, TX 78577

200 E Interstate 2 Ste Q12.35 miles

200 E Interstate 2 Ste Q
Pharr, TX 78577

1106 W Sam Houston St12.39 miles

1106 W Sam Houston St
Pharr, TX 78577

6201 South Cage Blvd Ste 612.80 miles

6201 South Cage Blvd Ste 6
Pharr, TX 78577

926 W Nolana Loop Ste A13.37 miles

926 W Nolana Loop Ste A
Pharr, TX 78577

403 N Jackson Rd13.55 miles

403 N Jackson Rd
Pharr, TX 78577

1401 E Ridge Rd Ste C13.59 miles

1401 E Ridge Rd Ste C
Mcallen, TX 78503

1201 East Ridge Road, Ste A13.71 miles

1201 East Ridge Road, Ste A
Mcallen, TX 78503

822 W Wisconsin Rd13.83 miles

822 W Wisconsin Rd
Edinburg, TX 78539

1102 W Trenton Rd13.92 miles

1102 W Trenton Rd
Edinburg, TX 78539

2505 W Trenton Rd14.00 miles

2505 W Trenton Rd
Edinburg, TX 78539

2109 W Trenton Rd Unit E14.00 miles

2109 W Trenton Rd Unit E
Edinburg, TX 78539

1301 E Fern Ave Ste B314.07 miles

1301 E Fern Ave Ste B3
Mcallen, TX 78501

1200 S 10th Ave14.12 miles

1200 S 10th Ave
Edinburg, TX 78539

409 E Mahl St14.21 miles

409 E Mahl St
Edinburg, TX 78539

122 W Champion St14.28 miles

122 W Champion St
Edinburg, TX 78539

801 E Nolana Ave Ste 914.35 miles

801 E Nolana Ave Ste 9
Mcallen, TX 78504

104 S 12th Ave14.39 miles

104 S 12th Ave
Edinburg, TX 78539

110 E Savannah Ave14.46 miles

110 E Savannah Ave
Mcallen, TX 78503

2015 Jackson Creek Ave14.57 miles

2015 Jackson Creek Ave
Edinburg, TX 78539

301 W Expressway 8314.66 miles

301 W Expressway 83
Mcallen, TX 78503

4847 S Jackson Rd14.80 miles

4847 S Jackson Rd
Edinburg, TX 78539

1401 S 6th St14.83 miles

1401 S 6th St
Mcallen, TX 78501

2723 W Trenton,14.94 miles

2723 W Trenton,
Edinburg, TX 78539

707 Savannah Ave14.99 miles

707 Savannah Ave
Mcallen, TX 78503

2514 W Freddy Gonzalez Dr15.32 miles

2514 W Freddy Gonzalez Dr
Edinburg, TX 78539

606 S Broadway St15.34 miles

606 S Broadway St
Mcallen, TX 78501

4313 N 10th St Ste B15.50 miles

4313 N 10th St Ste B
Mcallen, TX 78504

6316 N 10th St Ste C-115.82 miles

6316 N 10th St Ste C-1
Mcallen, TX 78504

Drug Testing Near Me

Comprehensive Drug Testing Solutions Across Weslaco, TX and Beyond

Searching for reliable drug testing services near you? Look no further than Accredited Drug Testing, Inc., a leading name across the United States, including the great state of Weslaco, TX. With an impressive network of over 20,000 locations nationwide, we provide same-day drug and alcohol testing that meets the requirements of various needs including DOT-regulated tests, court-mandated screenings, pre-employment drug tests, and personal assessments.

Scheduling a test with us is a breeze, ensuring both speed and confidentiality. Call us at (800) 221-4291 or schedule online 24/7 to locate a convenient drug testing center close by. Our certified collection sites offer precise and reliable outcomes, ensuring compliance with both federal and state standards. When it comes to ensuring safety and compliance, Accredited Drug Testing is committed to delivering trusted and timely results, providing you with the peace of mind you need.

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 Weslaco, TX and nationally, urine drug testing stands out as the most frequently utilized screening approach and uniquely authorized for DOT-regulated drug evaluations under 49 CFR Part 40. This technique identifies recent drug consumption by examining a urine specimen for drugs, drug metabolites, or alcohol markers. The procedure is standardized to ensure confidentiality and accuracy, yielding legally defensible results for employers, individuals, and court-mandated programs.

Testing Methods & Collection Process

  • Identity Verification: Donors must present valid government-issued ID, with all required chain-of-custody processes completed pre-testing.
  • Secure Collection: Specimens are gathered in controlled settings. Measures include personal item restrictions and colored toilet water to deter tampering.
  • Chain of Custody: The use of a federally-recognized Chain of Custody Form (CCF) maintains the sample's legal defensibility from collection to lab analysis.
  • Temperature & Validity Checks: Immediately after collection, temperature, and appearance checks are conducted, alongside further lab validity testing.
  • DOT Split Specimen: A split sample, Bottle A for primary analysis and Bottle B for retesting, fortifies result verification.
  • Laboratory Screening & Confirmation: Specimens undergo initial immunoassay screening followed by GC/MS or LC/MS confirmation tests at SAMHSA-certified laboratories.
  • MRO Verification: A licensed Medical Review Officer ensures all results' accuracy, discussing any non-negative outcomes with donors.

How Long Do Urine Test Results Take?

  • Instant Urine Test: Same-day negative; 24-72 hours for confirmed positives.
  • Lab-Based Urine Test: 24-48 hours for negatives.
  • DOT Drug Test: 1-3 business days based on MRO review and donor contacttime required in Weslaco, TX.
  • Urine EtG Alcohol Test: Approximately 24-48 hours.

Note: Additional time might be needed in cases involving shy bladder, invalid samples, and if further confirmation or donor contact is necessary.

Benefits of Urine Drug & Alcohol Testing

Limitations of Urine Drug & Alcohol Testing

Nevertheless, urine testing remains the top option for drug and alcohol screening across the nation, including Weslaco, TX.

How Hair Drug Testing Works

Hair analysis for drugs and alcohol stands out as a dependable lab approach, ideal for assessing a person's substance usage over an extended period. Moving past the immediate detection found in urine testing, hair testing offers a comprehensive 90-day analysis window by scrutinizing metabolites found within hair strands. This method holds significant value in workplace drug policies, legal disputes, custody battles, and settings demanding an extensive view of an individual's history of substance involvement within Weslaco, TX.

Testing Methods & Collection Process

1. Donor Identity Verification

Data integrity initiates when the donor cues valid ID and signs necessary consent forms, maintaining proper chain-of-custody.

2. Hair Collection Procedure

A trained specialist collects a small sample of hair, usually around 100-120 strands, cut close to the scalp. While the top of the head is prioritized, body hair serves as an alternative when necessary. The method is pain-free and completed under supervision.

3. Chain of Custody Documentation

Meticulous handling is documented in the Hair Drug Test Custody and Control Form, ensuring the whole procedure, from collection to examination, meets legal mandates.

4. Laboratory Preparation & Analysis

Under rigorous forensic precision in labs:

  • Decontamination: Washing to clear surface residues.
  • Cutting/Grinding: Segmenting for extraction readiness.
  • Extraction: Metabolite isolation from hair.

The specimen surpasses precise lab scrutiny:

  • Initial Screening - Detects drug categories via immunoassay analyses.
  • Confirmation Testing - Verifies specific drugs/metabolites using GC/MS or LC/MS.

5. Metabolite Detection

With metabolites ensconced as the hair grows, a steadfast record forms, presenting challenges to attempts at tampering it's a method resilient against deception.

6. MRO Review

Competent Medical Review Officers critically assess non-negative results, offer medical insight, and assert authenticity in delivering final results.

How Long Do Hair Test Results Take?

  • Standard Hair Test: Completion within 2-3 business days post sample delivery to the laboratory.
  • Complex Panels or Alcohol Testing (EtG/FAEE): Take up to 3-5 business days based on testing complexity.

Despite extending timelines than urine methods, hair examination stakes a claim in delivering unfailing results, proving indispensable for thorough substance history surveillance.

Benefits of Hair Drug & Alcohol Testing

  • 90-day coverage exposes sustained usage patterns.
  • Resists evasion extremely hard to alter or fake.
  • Establishes records of ongoing or sporadic use cessation.
  • Vital to legal matters, custody evaluation, and jurisdictional programs.
  • Promotes easy, quick sample collection.
  • Verification durability through GC/MS or LC/MS.

Limitations of Hair Drug & Alcohol Testing

  • Limited in discerning recent substance intake (first 5-7 days).
  • Higher overall cost alongside urine or saliva analyses.
  • Body hair cannot specify concrete timelines post-substance use.
  • Substance incorporation may vary per hair type and growth.
  • Not recognized by DOT testing stipulations.

While certain drawbacks exist, hair testing upholds its position as a proactive tool for long-lasting substance auditing, adored by employers, legal experts, and individuals seeking fool-proof, tamper-free viability studies.

Alcohol & Drug Testing-How Each Method Works

Accredited Drug Testing offers an extensive suite of drug and alcohol screening methods, meticulously tailored to address the needs of employers, DOT regulations, legal mandates, and personal requirements. Gaining insight into the nuances of each test type guarantees precise choices, dependable results, and adherence to both federal and Weslaco, TX state standards. Our vast network, certified labs, and skilled Medical Review Officers furnish the precision, reliability, and expertise indispensable for ensuring high-quality testing results.

Alcohol Urine Drug Test

An alcohol urine test discerns recent alcohol use by identifying ethanol byproducts in urine. Predominantly utilized in workplaces, court settings, and post-incident examinations, while it doesn't assess current impairment levels, its short detection period a few hours offers a swift, financially feasible screening solution that's especially relevant in Weslaco, TX.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test is acclaimed for its heightened sensitivity, capable of spotting alcohol consumption up to 80 hours post-ingestion. Given that EtG is a direct ethanol derivative, this test is widely favored by court systems, rehab initiatives, and compliance bodies, providing a lengthier detection timeframe than regular urine tests and noted for robust accuracy and dependability.

Breath Alcohol Test

A breath alcohol test gauges existing impairment by scrutinizing the alcohol concentration in deep lung air. These exams employ DOT-certified breath analyzers (EBTs) to produce immediate, legally robust outcomes. Breath analysis is mandated for employees covered by DOT, and is frequently administered for workplace scenarios, post-accident screenings, and inspections based on reasonable doubt.

Blood Alcohol Test

A blood alcohol test precisely quantifies the volume of ethanol circulating in the bloodstream, ranking as one of the most definitive measures for determining impairment. It sees prominent application in hospitals, police departments, and legal forums for its accuracy, notably in DUI contexts, emergency healthcare, and pivotal legal examinations.

PEth Alcohol Blood Test

A PEth (Phosphatidylethanol) blood test discerns ongoing or significant alcohol consumption by identifying alcohol-centric biomarkers within red blood cells. It can pinpoint usage up to 2-3 weeks, serving as a key marker of extended drinking patterns. This test is prevalent in family law matters, oversight initiatives, treatment settings, and pre-employment screenings in high-safety Weslaco, TX industries.

ETG Alcohol Test (Hair)

The EtG hair alcohol test spans a 90-day detection period by examining alcohol metabolites incorporated in the hair shaft, revealing trends of repeated or sustained alcohol use beyond singular instances. Judicial systems, custody battles, and continuous monitoring schemes rely on EtG hair testing in Weslaco, TX due to its reliability, accuracy, and resilience against temporary abstinence strategies.

With the skills of experts, nationally accredited labs, and rapid scheduling, Accredited Drug Testing guarantees that each alcohol testing method delivers defensible, transparent, and compliant results, aiding individuals and businesses in staying informed, protected, and compliant with all regulations.


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

Fantastic Experience

Fantastic experience from the beginning. Jocelyn was very helpful to me as someone who doesn’t have much experience in needing a test. They were very helpful and walked me through the entire process start to finish. Thank you ADT!

Riley Wilson - 2/18/2025

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

Fast and efficient service

Fast and efficient service for employers wanting to do pre employment drug screening that meets DOT requirements!!

Mary Thomas - 4/5/2025

Clear and Competent

I was so surprised with the quality of customer service I received today when I called Accredited Drug Testing. The representative was so clear and competent. She was able to reschedule an appointment at my preferred location. The representative whose name is Justice, was so polite and competent. She expedited the whole process. It was a relief to me.

Rachel Padian - 9/6/2024

Great service

Great service easy use quick processing! Need a hair follicle for my DCFS case , quick and convenient!

Jesse Dupre - 4/12/2025


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(800) 221-4291