Medically reviewed by the clinical team at Immediate Care Center of Westmont · Published July 23, 2026 · Last reviewed July 23, 2026
When your employer requires a drug screen, Immediate Care Center of Westmont provides fast, professional non-DOT drug and alcohol testing for job applicants and employers across Westmont, Downers Grove, Hinsdale, Oak Brook, Darien, and the surrounding DuPage County area. As a walk-in clinic open seven days a week, we make workplace testing simple — no appointment needed, with results handled according to your employer’s instructions.
“Non-DOT” testing refers to workplace drug and alcohol screening that is not governed by the U.S. Department of Transportation’s federal regulations. Most private employers — in warehousing, manufacturing, healthcare, hospitality, retail, and office roles — use non-DOT testing to support a safe, drug-free workplace. Federal guidance on workplace drug-testing programs is published by the Substance Abuse and Mental Health Services Administration (SAMHSA), and many employer programs are modeled on those standards even when they are not federally mandated.
Important: Immediate Care Center of Westmont provides non-DOT testing only. We do not perform DOT / CDL (commercial driver) physicals or federally regulated DOT drug and alcohol testing.
The most common workplace drug screen is a urine test, valued for being accurate, cost-effective, and widely accepted. Depending on your employer’s policy, testing may use a 5-panel or an expanded 10-panel screen:
The exact panel and method are set by your employer, not the clinic. If you are unsure which test you need, bring the paperwork your employer provided or call us at (630) 324-6825.
Workplace drug testing is straightforward. For a urine screen, you will provide a sample at the clinic under standard collection procedures designed to protect the integrity of the specimen — you may be asked to empty your pockets and leave personal belongings aside. The sample is then processed, and results are reported according to your employer’s program. For a general overview of how urine drug screening works, the National Library of Medicine’s MedlinePlus is a reliable, plain-language resource.
If you take a legally prescribed medication, disclose it at the time of your test. Certain prescriptions can affect results, and a Medical Review Officer may contact you to verify a valid prescription before a result is finalized.
DOT testing follows strict federal rules and applies to safety-sensitive transportation roles, such as commercial truck drivers. Non-DOT testing covers everyone else and gives employers flexibility in the panels and cutoffs they use. Because we provide non-DOT testing only, applicants who need a federally mandated DOT test should visit a DOT-certified provider. If your role is a standard, non-transportation position, our non-DOT screening is designed for you.
Local employers rely on us as a convenient occupational-health partner for pre-hire and workplace testing. A nearby walk-in option means faster onboarding and less downtime for your team. We can coordinate non-DOT drug screening alongside pre-employment physicals and other occupational medicine services. To set up employer testing, call (630) 324-6825.
Employers use drug and alcohol testing to protect workplace safety, reduce accidents, control liability, and support a productive, drug-free environment. Testing is especially common in roles that involve operating equipment, driving (non-commercial), physical labor, patient care, or handling sensitive materials. For many companies, a clear testing policy is also part of workers’ compensation and insurance requirements. Whatever the reason, our goal is to make the testing step quick and hassle-free so your start date isn’t delayed.
How long a substance remains detectable in urine varies widely depending on the drug, how often it is used, dosage, metabolism, and individual health factors. Because these windows differ from person to person, no single timeframe applies to everyone. If you have a legitimate medical explanation for a substance — such as a prescription medication — the most important step is to disclose it at the time of testing. Reliable, general information about how drug testing works is available through the National Library of Medicine (MedlinePlus).
Results are reported to your employer according to their program. A screening result that appears positive is often reviewed further — and for many programs, confirmed by a laboratory and evaluated by a Medical Review Officer — before it is finalized. This process helps ensure accuracy and gives you an opportunity to explain a valid prescription. If you have questions about the process, our team is glad to walk you through what to expect.
The 5-panel urine test is the most widely used workplace screen. Some employers request a 10-panel test for expanded coverage.
A routine annual physical usually does not include a drug test. Drug testing is typically added for employment, safety-sensitive roles, or when specifically requested by an employer.
Disclose all prescription medications at the time of testing. A valid prescription can explain a result that would otherwise appear positive, and disclosing it up front helps ensure your result is interpreted correctly.
No. We provide non-DOT testing only. If you need a federally regulated DOT test, please visit a DOT-certified collection site.
Urine drug screening is widely used because it is accurate and reliable. To further protect accuracy, many programs confirm a non-negative screening result with laboratory testing and Medical Review Officer review before a final result is issued.
Yes. As a walk-in clinic, we can typically complete your non-DOT test during your visit. Bringing your employer’s paperwork and a valid photo ID helps everything go quickly.
Walk in any day of the week, or check in online first to reduce your wait. For questions about cost or the insurance we accept, visit our cost & insurance page or call (630) 324-6825.
This page is for general educational purposes and is not a substitute for professional medical advice. If you are experiencing a medical emergency, call 911.
Monday – Friday: 9:00 AM – 6:00 PM
Saturday – Sunday: 9:00 AM – 5:00 PM
