Drug & Alcohol Testing Near Me - Alamo, 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

36 Drug-Testing Centers in Alamo

Minutes Away, Test Today

427 E Duranta Ave Ste 1031.29 miles

427 E Duranta Ave Ste 103
Alamo, TX 78516

220 S Cage Blvd Ste C3.87 miles

220 S Cage Blvd Ste C
Pharr, TX 78577

1106 W Sam Houston St4.04 miles

1106 W Sam Houston St
Pharr, TX 78577

200 E Interstate 2 Ste Q4.70 miles

200 E Interstate 2 Ste Q
Pharr, TX 78577

403 N Jackson Rd5.21 miles

403 N Jackson Rd
Pharr, TX 78577

1401 E Ridge Rd Ste C5.29 miles

1401 E Ridge Rd Ste C
Mcallen, TX 78503

1201 East Ridge Road, Ste A5.40 miles

1201 East Ridge Road, Ste A
Mcallen, TX 78503

926 W Nolana Loop Ste A5.42 miles

926 W Nolana Loop Ste A
Pharr, TX 78577

6201 South Cage Blvd Ste 65.76 miles

6201 South Cage Blvd Ste 6
Pharr, TX 78577

1301 E Fern Ave Ste B35.93 miles

1301 E Fern Ave Ste B3
Mcallen, TX 78501

110 E Savannah Ave6.16 miles

110 E Savannah Ave
Mcallen, TX 78503

801 E Nolana Ave Ste 96.30 miles

801 E Nolana Ave Ste 9
Mcallen, TX 78504

301 W Expressway 836.33 miles

301 W Expressway 83
Mcallen, TX 78503

1401 S 6th St6.50 miles

1401 S 6th St
Mcallen, TX 78501

1102 W Trenton Rd6.64 miles

1102 W Trenton Rd
Edinburg, TX 78539

707 Savannah Ave6.68 miles

707 Savannah Ave
Mcallen, TX 78503

2505 W Trenton Rd6.71 miles

2505 W Trenton Rd
Edinburg, TX 78539

2109 W Trenton Rd Unit E6.71 miles

2109 W Trenton Rd Unit E
Edinburg, TX 78539

822 W Wisconsin Rd6.83 miles

822 W Wisconsin Rd
Edinburg, TX 78539

606 S Broadway St6.98 miles

606 S Broadway St
Mcallen, TX 78501

4313 N 10th St Ste B7.41 miles

4313 N 10th St Ste B
Mcallen, TX 78504

2723 W Trenton,7.46 miles

2723 W Trenton,
Edinburg, TX 78539

3421 W Us Highway 83 Ste 17.56 miles

3421 W Us Highway 83 Ste 1
Mcallen, TX 78501

501 N Ware Rd7.56 miles

501 N Ware Rd
Mcallen, TX 78501

4847 S Jackson Rd7.67 miles

4847 S Jackson Rd
Edinburg, TX 78539

2015 Jackson Creek Ave7.67 miles

2015 Jackson Creek Ave
Edinburg, TX 78539

1200 S 10th Ave7.86 miles

1200 S 10th Ave
Edinburg, TX 78539

1723 N 23rd St7.87 miles

1723 N 23rd St
Mcallen, TX 78501

6316 N 10th St Ste C-18.01 miles

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

122 W Champion St8.18 miles

122 W Champion St
Edinburg, TX 78539

4132 N 23rd St8.25 miles

4132 N 23rd St
Mcallen, TX 78504

409 E Mahl St8.28 miles

409 E Mahl St
Edinburg, TX 78539

2501 Buddy Owens Ave8.38 miles

2501 Buddy Owens Ave
Mcallen, TX 78504

104 S 12th Ave8.45 miles

104 S 12th Ave
Edinburg, TX 78539

2514 W Freddy Gonzalez Dr8.47 miles

2514 W Freddy Gonzalez Dr
Edinburg, TX 78539

2602 W Expressway 83 Ste 28.48 miles

2602 W Expressway 83 Ste 2
Weslaco, TX 78596

Drug Testing Near Me

Seeking convenient drug testing services in your area? Accredited Drug Testing, Inc. is known nationwide for providing same-day drug and alcohol testing with over 20,000 accessible testing sites across the country, including locations in Alamo, TX. Whether required for Department of Transportation (DOT) compliance, court-ordered screenings, pre-employment checks, or personal verification, we streamline the process for quick, easy, and private scheduling. Our certified network, along with laboratory partnerships, ensures that results are both accurate and adhere to federal and Alamo, TX state regulations. Contact us toll-free at (800) 221-4291 or conveniently book online anytime to locate a nearby drug testing site. When reliability and compliance are of utmost importance, trust Accredited Drug Testing for prompt and dependable results every single time.

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 Alamo, TX and across the country, urine drug testing is the most widely utilized screening method and is the exclusive test type sanctioned for DOT-regulated drug testing under 49 CFR Part 40. By evaluating a urine sample for drugs, drug by-products, or alcohol markers, recent substance use can be detected. This standardized and confidential procedure ensures the delivery of precise, legally rigorous results for employers, individuals, and legally ordered programs.

Testing Methods & Collection Process

1. Donor Identity Verification

The donor must present a legitimate government-issued ID and complete the necessary chain-of-custody signatures before initiation of testing.

2. Secure Collection Environment

Urine samples are collected in secured restroom facilities to deter tampering, often involving restrictions on personal belongings, securing water sources, and dyeing toilet water as part of security norms.

3. Chain of Custody Documentation

A federally endorsed Chain of Custody Form (CCF) meticulously tracks the sample's journey from collection through to laboratory analysis, preserving the test's integrity and legal viability.

4. Temperature & Validity Checks

Post-collection, the specimen is scrutinized for temperature and appearance accuracy. Additionally, validity testing including checks for creatinine levels, pH, specific gravity, and adulterant presence is conducted.

5. DOT Split Specimen

DOT urine tests involve bifurcation into two vials: Bottle A is utilized for primary analysis and Bottle B for retesting in case of a challenge. For non-DOT tests, a single vial is collected.

6. Laboratory Screening & Confirmation

Samples are processed in SAMHSA-certified laboratories through a dual-step process:

  • Initial Immunoassay Screen: Detects drug classes.
  • Confirmation Testing: Utilizes GC/MS or LC/MS to identify specific drugs or metabolites.

7. MRO Verification

Non-negative results are substantiated by a licensed Medical Review Officer (MRO), who validates the data and discusses any possible medical justifications with the donor prior to final result dissemination.

How Long Do Urine Test Results Take?

  • Instant Urine Test: Immediate feedback for negative results; positives are forwarded to the lab for confirmation typically taking 24-72 hours.
  • Lab-Based Urine Test: 24-48 hours for most negatives.
  • DOT Drug Test: Generally 1-3 business days, factoring in MRO review and donor communication.
  • Urine EtG Alcohol Test: Typically processed within 24-48 hours.

Additional processing time may be necessary for situations involving shy bladders, invalid samples, or where lab validation and donor interaction are essential.

Advantages of Urine Drug & Alcohol Testing

  • The only DOT-endorsed method meeting federal regulation criteria.
  • Detects recent use, especially beneficial in workplace and post-incident analyses.
  • Cost-effective with rapid result delivery.
  • Universally accepted by courts, employers, and governmental bodies.
  • Immediate testing options available for rapid evaluation.
  • Highly precise confirmations via GC/MS or LC/MS technology.

Limitations of Urine Drug & Alcohol Testing

  • Limited detection window (generally 1-7 days for most drugs).
  • Requires stringent security to prevent tampering.
  • Doesn't reflect long-term usage patterns.
  • Necessitates accessible restroom and detailed collection protocols.
  • Standard tests don't detect alcohol unless specifically testing for EtG/EtS.

Despite these limitations, urine tests remain the leading choice for drug and alcohol detection across the nation.

How Hair Drug Testing Works

Comprehensive Hair Drug & Alcohol Testing in Alamo, TX

Hair drug and alcohol analysis represents a robust method for understanding long-term substance use, providing a reliable 90-day detection period by isolating drug metabolites within the hair structure. Divergent from urine testing's temporal range, hair evaluations shine in roles where extended analysis is critical, such as workplace programs, court adjudications, and custody disputes. This process is thus suitably applied across Alamo, TX for long-view substance use evaluation.

Testing Techniques & Collection Dynamics

Timeframe for Hair Test Results

Although more involved than urine tests, hair screenings offer unparalleled accuracy over extended periods, making them a preferred choice in many professional and legal scenarios.

Proficiencies of Hair Drug & Alcohol Assessments

Despite a few limitations, hair testing's reliability for chronic detection makes it indispensable for various professionals in Alamo, TX and beyond.

Alcohol & Drug Testing-How Each Method Works

Accredited Drug Testing offers a comprehensive suite of alcohol and drugs testing solutions tailored to satisfy the demands of employers, DOT, legal bodies, and private individuals. An informed understanding of each examination technique aids in precise selections, guarantees trustworthy outcomes, and ensures adherence to both federal and Alamo, TX's state mandates. Our expansive network, along with credentialed labs congregated with expert Medical Review Officers, provides the accuracy, faith, and professionalism indispensable for consistent testing results.

Alcohol Urine Drug Test

An alcohol urine test recently consumes alcohol by identifying ethanol metabolites present in urine content. This strategy thrives under workplace testing conditions, post-accident scenarios, and judicial prerequisites. Despite the lack of impairment measurement, it fortunately captures a concise detection period, rendering it practical and economic for such interpretations.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test epitomizes a methodical sensitivity level adept at identifying alcohol consumption extending to 80 hours post-intake. Recognized as a direct byproduct of ethanol metabolization, its widespread application amongst courts, rehabilitation units, and regulatory chesspieces speaks volumes to its remarkable detection span relative to conventional urine alcohol assays. Renowned for its dependability and pinpoint accuracy, this approach garners well-deserved endorsement.

Breath Alcohol Test

A breath alcohol test quantifies existing impairment by measuring alcohol concentrations, particularly through the examination of deep lung air. Conducted with DOT-approved breath alcohol devices (EBTs), this method presents immediate and court-ready results. Essential for DOT-affiliated employees, breath scrutiny is commonly performed in workplace contexts, post-incident evaluations, and instances of rational suspicion.

Blood Alcohol Test

Through directly measuring the ethanol concentration coursing through one's bloodstream, a blood alcohol test resides at the zenith for determining current impairment. Hospitals, law enforcement realms, and authoritative legal partners prominently depend on blood alcohol evaluations for their unrivaled diligence, notably amid DUI undertakings, emergency response scenarios, and consequential investigative mandates.

PEth Alcohol Blood Test

By detecting alcohol-specific biomarkers entrapped within erythrocytes, a PEth (Phosphatidylethanol) blood test excels at identifying chronic or heavy alcohol usage. peaking the detection period to 2-3 weeks, this method enjoys recognition as a robust indicator for extended drinking conduct. Habitually utilized in family law practices, monitoring efforts, therapeutic establishments, and pre-employment screenings in industries defined by safety sensitivity.

ETG Alcohol Test (Hair)

The EtG hair alcohol test bestows a 90-day detection window by inspecting alcohol metabolites preserved within one's hair structure. More so than singular episodes of intake, it comprehends habits of repetitive or ongoing alcohol engagement. Courts, child custody matters, and long-haul monitoring agendas trust this assay due to its reliability, longevity, and resistance to temporary abstinence attempts.

Guided by experienced advisors, certified laboratories, and swift scheduling options, Accredited Drug Testing promises that each alcohol screening technique yields clear, legally robust, and regulation-aligned results, empowering clients and corporations to remain alert, safeguarded, and entirely compliant.


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

Excellent service!

Excellent service! Trish went above and beyond to find me a testing site as close to my home as possible. Results were faster than expected, as well. Thanks for your help, Trish and Accredited!

Es Hache - 4/13/2025

Saved My CDL!

Time was running out before my Cdl got downgraded because of a violation I had on clearinghouse. I couldn't find an employer to send me for my return to duty test, but these guys had my test scheduled and done in the same day! They saved my cdl. Thank you again!

Michael Williams - 12/2/2024

Extremely pleasant

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!

Brynne Beverly - 4/19/2024

Accredited has been wonderful to work with!

Accredited has been wonderful to work with! My court ordered tests are on a very strange schedule but every time I call, they are quick to schedule me and are always able to find a location that works for where I’m at and when! Thank you for making this rather undesirable situation less stressful and efficient.

Madison Sanderford - 8/19/2024

Great experience

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

Jenna Bee - 2/19/2025


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(800) 221-4291