Drug & Alcohol Testing Near Me - Knoxville, IA

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

38 Drug-Testing Centers in Knoxville

Minutes Away, Test Today

1002 S Lincoln St0.70 miles

1002 S Lincoln St
Knoxville, IA 50138

604 Liberty St Ste 22711.67 miles

604 Liberty St Ste 227
Pella, IA 50219

404 Jefferson St12.06 miles

404 Jefferson St
Pella, IA 50219

108 N Jefferson Way23.46 miles

108 N Jefferson Way
Indianola, IA 50125

410 N 12th St Ste 30024.89 miles

410 N 12th St Ste 300
Oskaloosa, IA 52577

1229 C Ave E24.90 miles

1229 C Ave E
Oskaloosa, IA 52577

6580 165th St25.05 miles

6580 165th St
Albia, IA 52531

300 N 4th Ave E Ste 20026.53 miles

300 N 4th Ave E Ste 200
Newton, IA 50208

107 N 3rd St27.03 miles

107 N 3rd St
Eddyville, IA 52553

3770 8th St Sw29.80 miles

3770 8th St Sw
Altoona, IA 50009

2100 Dixon St Ste E31.98 miles

2100 Dixon St Ste E
Des Moines, IA 50316

1301 Pennsylvania Ave Ste 41632.32 miles

1301 Pennsylvania Ave Ste 416
Des Moines, IA 50316

1200 Pleasant St33.02 miles

1200 Pleasant St
Des Moines, IA 50309

1650 E Madison Ave33.13 miles

1650 E Madison Ave
Des Moines, IA 50313

2417 University Ave34.01 miles

2417 University Ave
Des Moines, IA 50311

2340 Euclid Ave35.00 miles

2340 Euclid Ave
Des Moines, IA 50310

210 4th Ave35.03 miles

210 4th Ave
Grinnell, IA 50112

1233 8th St36.32 miles

1233 8th St
West Des Moines, IA 50265

1810 Sw White Birch Circle Ste 11137.36 miles

1810 Sw White Birch Circle Ste 111
Ankeny, IA 50023

1824 Sw White Birch Cir37.36 miles

1824 Sw White Birch Cir
Ankeny, IA 50023

5911 Meredith Dr Ste D37.82 miles

5911 Meredith Dr Ste D
Des Moines, IA 50322

2700 Westown Pkwy Ste 27037.84 miles

2700 Westown Pkwy Ste 270
West Des Moines, IA 50266

640 S 50th St Unit 110038.06 miles

640 S 50th St Unit 1100
West Des Moines, IA 50265

5731 Greendale Rd Ste 10038.64 miles

5731 Greendale Rd Ste 100
Johnston, IA 50131

800 S Fillmore St39.80 miles

800 S Fillmore St
Osceola, IA 50213

12871 University Ave Ste 13040.38 miles

12871 University Ave Ste 130
Clive, IA 50325

417 S East St40.52 miles

417 S East St
Corydon, IA 50060

417 S East St Ste 10040.52 miles

417 S East St Ste 100
Corydon, IA 50060

6000 University Ave Ste 12440.61 miles

6000 University Ave Ste 124
West Des Moines, IA 50266

11144 Aurora Ave40.68 miles

11144 Aurora Ave
Urbandale, IA 50322

11208 Aurora Ave Bldg 1240.68 miles

11208 Aurora Ave Bldg 12
Urbandale, IA 50322

11319 Aurora Ave,40.84 miles

11319 Aurora Ave,
Urbandale, IA 50322

1317 N Court St41.48 miles

1317 N Court St
Ottumwa, IA 52501

1114 N Haynes Ave41.96 miles

1114 N Haynes Ave
Centerville, IA 52544

236 W Maple St42.44 miles

236 W Maple St
Centerville, IA 52544

1001 Pennsylvania Ave42.54 miles

1001 Pennsylvania Ave
Ottumwa, IA 52501

1005 Pennsylvania Ave Ste 10242.55 miles

1005 Pennsylvania Ave Ste 102
Ottumwa, IA 52501

1 Saint Joseph Dr43.66 miles

1 Saint Joseph Dr
Centerville, IA 52544

Drug Testing Near Me

Searching for drug testing near me in Knoxville, IA? Look no further than Accredited Drug Testing, Inc., the nation's go-to provider for quick same-day drug and alcohol testing options at over 20,000 locations nationwide, including in Knoxville, IA. Whether your needs involve DOT-regulated tests, court-mandated screenings, pre-employment checks, or individual testing for personal inquiry, our services are designed to make the scheduling process swift, straightforward, and entirely confidential. All our collection sites and labs are certified, ensuring your results are both accurate and compliant with federal and state regulations. You can easily reach out to us at (800) 221-4291 or schedule online 24/7 to locate a convenient drug testing center near you in Knoxville, IA. When it comes to prioritizing safety, compliance, and peace of mind, Accredited Drug Testing provides trustworthy results that you can count on on time, every 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

As the top choice nationwide, urine drug tests serve as the standard, federally accepted method for DOT-mandated screenings, specifically under 49 CFR Part 40. Urine testing highlights recent drug or alcohol consumption by evaluating a sample's drug presence, metabolites, or alcohol markers. Crafted for precision and privacy, it delivers reliable, legally secure outcomes tailored for businesses, legal obligations, or personal inquiries in Knoxville, IA.

Process & Collection Techniques

  • Identity Verification: Participants display an official ID and sign the necessary chain-of-custody documents pre-test.
  • Secure Collection: Collected in regulated spaces to curtail interference, securing personal items, sealing water outlets, and coloring restroom water.
  • Chain of Custody: The standardized Chain of Custody Form trails the sample from collection to testing, safeguarding its legal standing.
  • Validity Checks: Once taken, specimens are assessed for temperature and appearance, with labs further executing validity checks including creatinine, pH, and adulterant screens.
  • DOT Split Specimen: DOT evaluations divide samples into two, enabling retests if needed; non-DOT tests use a single vial.
  • Laboratory Confirmation: With SAMHSA-certified labs, the dual-phase screenings use Immunoassay for initial detection and GC/MS or LC/MS for precise confirmation.
  • MRO Review: A qualified Medical Review Officer validates results, engaging with donors on non-negative findings before releasing them.

Urine Test Result Timeline

  • Instant Results: Negative findings available swiftly; positive samples undergo additional lab verification within 24-72 hours.
  • Standard Lab Tests: Most negative outcomes procured in 24-48 hours.
  • DOT Assessments: Delivered in 1-3 business days based on MRO scrutiny.
  • EtG Alcohol Evaluation: Generally processed between 24-48 hours.
Additional delays may occur due to shy bladder, invalid samples, or confirmation retakes.

Advantages of Urine Analysis

Urine Testing Limitations

Despite limitations, urine testing remains the primary and most critical means employed for substance evaluations.

How Hair Drug Testing Works

Hair drug and alcohol screenings stand as a credible forensic strategy to detect long-term usage frameworks. In contrast to urine testing which reveals recent consumptions, hair analysis evaluates drug metabolites ensconced in the hair shaft, offering a comprehensive 90-day observation span. This approach is invaluable for workplace assessments, legal cases, child custody disputes, and scenarios demanding a broader snapshot of an individual's substance history, with services inclusive in Knoxville, IA.

Testing Procedures & Collection Workflow

1. Verification of Donor Identity

Proceedings start once the donor presents a valid government ID, finalizing every essential consent, and custody signatures for viable documentation.

2. Hair Sample Gathering

Expert collectors acquire a compact hair strain - chiefly 100-120 strands - trimmed close to the scalp. Despite the head's crown being the favored site, in its absence, alternate body hair might be harvested courteously, quietly observed throughout.

3. Custodial Chain Documentation

A Hair Drug Test Custody and Control Form is affixed to authenticate the collection, sealing, and transit of the specimen, assuring legally defensible outcomes and preserving integrity throughout testing.

4. Laboratory Conditioning & Analysis

In the lab, hair samples navigate several forensic phases:

  • Decontamination: Erasure of exterior contaminants, like smoke residue or environs.
  • Sectioning/Grinding: Hair is segmented or pulverized prepping for extraction.
  • Extraction: Drug metabolites are chemically retrieved from within the hair matrix.

The sample is then scrutinized utilizing advanced testing techniques:

  • Initial Screening - Immunoassay evaluations spotlight drug categories.
  • Verification Testing - GC/MS or LC/MS apparatuses affirmed specific drugs/metabolites with technical accuracy.

5. Metabolite Detection

While the hair nurtures, drug remains preserve within its shaft yielding a staunch long-term consumption record, rendering hair testing remarkably secure against tampering or deceit.

6. MRO Analysis

Appointed Medical Review Officers evaluate all non-negative data for compliance, cognize possible healthcare justifications, thereafter issuing the certified final inference.

Timeline for Hair Test Results

  • Standard Hair Testing: 2-3 business days post-sample arrival at the lab.
  • Intricate Panels/Alcohol Testing (EtG/FAEE): Determinable over a 3-5 business day stretch based on the test module.

Despite the protracted laboratory processes involved in hair testing, its steadfast detection reliability surpasses urine testing alternatives considerably.

Advantages of Hair Drug & Alcohol Testing

  • 90-day detection latitude reflecting enduring substance consumption.
  • Extremely impregnable against counterfeiting or tampering stratagems.
  • Charts regular, sporadic, or ceased drug usage patterns.
  • Favored in legal contests, child custody determinations, and regulatory adherences.
  • Non-invasive and rapidly executed collection.
  • Currently, no DOT regulated approvals exist for hair testing criteria.

Constraints of Hair Drug & Alcohol Testing

  • Incumbent challenges spotting very recent uses (5-7 days ensuing consumption).
  • Carries heftier expenses when estimated against urine or oral fluids tests.
  • Body hair unable to provide definite detection intervals.
  • Substances integrate with hair variably influenced by hair types and maturity rates.
  • Though possessing certain limitations, hair testing endures as a premium method for discerning chronic substance consumptions, enacted extensively by employers, legal authorities, and individual users demanding credible tamper-protected outcomes.

Alcohol & Drug Testing-How Each Method Works

Exploring Alcohol and Drug Testing Options in Knoxville, IA

A comprehensive array of alcohol and drug testing solutions is offered by Accredited Drug Testing, tailored for DOT, employer, legal, and individual requirements. Discerning the specifics of each test ensures precise, dependable results, solidifying adherence to federal and state regulations. Our expansive network, alongside SAMHSA-certified labs and seasoned Medical Review Officers, embodies professionalism, accuracy, and reliability.

Alcohol Urine Drug Test

An alcohol urine test identifies ethanol metabolites signifying recent alcohol consumption, often utilized in work environments, legal mandates, or post-incident scenarios. It does not measure present impairment but holds a brief detection period, rendering it an economical choice.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test offers a prolonged detection window of up to 80 hours, key for courts, treatment, and supervision programs, heralded for its sensitivity and dependability.

Breath Alcohol Test

A breath alcohol test evaluates immediate intoxication via DOT-permitted devices, delivering immediate and defensible outcomes, essential for covering DOT-eligible employees and other workplace evaluations.

Blood Alcohol Test

The blood alcohol test measures the alcohol concentration in the bloodstream directly, acclaimed for its precision in legal, emergency, and DUI contexts.

PEth Alcohol Blood Test

The PEth (Phosphatidylethanol) blood test detects alcohol-specific biomarkers, indicative of prolonged consumption, suitable for family law, treatment monitoring, and safety-sensitive job screenings due to its reliability.

ETG Alcohol Test (Hair)

Providing a 90-day overview, the EtG hair alcohol test inspects the alcohol metabolites in hair, significant for judiciary and custody evaluations due to its resistance to temporary abstinence or deception.

Supported by reputable lab evaluations and expert consultations, Accredited Drug Testing empowers stakeholders across Knoxville, IA with compliant and clear results, enhancing decision making in safety-sensitive and regulatory contexts.


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

Very easy to get scheduled

Very easy to get scheduled and easy process once checked in and the staff were all extremely friendly! I would recommend this company!

Ronickia Moore - 11/19/2024

Hassle Free Experience

It was easy to make the arrangements to get to someone in regards to renewing my DOT medical certificate. They took care of everything over the phone which made my experience hassle free. I will definitely be using them again and you should too.

Jim Raymond - 10/18/2024

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

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

Quick, Polite, Informative

Everyone has been quick to respond, polite, informative. It's been easy to order tests. I would recommend them to anyone to use.

April Rogers - 2/15/2025


Sources


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(800) 221-4291