--- title: "Is a drug screening the same as a drug test" description: "Is a drug screening the same as a drug test? Learn how they differ and which fits your needs. Call (877) 731-6362 for accurate testing info today." author: "AMH Nationwide" date: "2026-08-28" tags: ["is a drug screening the same as a drug test"] canonical: "https://amhnationwide.com/is-a-drug-screening-the-same-as-a-drug-test/" last_updated: "2026-08-28" --- # Is a drug screening the same as a drug test **By AMH Nationwide** | August 28, 2026 Is a drug screening the same as a drug test? Learn how they differ and which fits your needs. Call (877) 731-6362 for accurate testing info today. --- Is a drug screening the same as a drug test? The terms are related but not identical. A drug screening is a preliminary analysis to detect possible drug use, while a drug test is a comprehensive laboratory analysis that confirms and identifies specific substances. AMH Nationwide uses certified labs with Medical Review Officer oversight for reliable results. Call (877) 731-6362. BASICS ## What is a drug screening and how does it differ from a drug test? A drug screening is an initial, rapid assessment designed to detect the presence of drugs or their metabolites in a specimen, often used as a first step in drug testing. It is typically less detailed and may use immunoassay technology for quick results. A drug test refers to the full laboratory process that includes confirmatory testing. It identifies specific substances, their concentrations, and confirms initial screening results with higher accuracy. Drug screenings are often used for quick decisions, while drug tests provide legally defensible results for employers, courts, or medical purposes. Drug Screening: preliminary, rapid, less specific Drug Test: comprehensive, confirmatory, specific identification AMH Nationwide routes all samples through five national lab networks: [Quest Diagnostics](https://www.questdiagnostics.com/), [LabCorp](https://www.labcorp.com/), Omega Labs, United States Drug Testing Labs, and ExperTox. Every non-negative screen undergoes review by a certified Medical Review Officer to ensure accuracy and compliance. PROCESS ## How does AMH Nationwide handle drug screening and drug testing? AMH Nationwide provides the lab order and directs clients to one of 20,000+ nationwide collection sites. We do not offer online test ordering. At collection sites, trained personnel obtain specimens such as [urine](https://amhnationwide.com/urine-drug-testing/), hair, saliva, or blood depending on the test panel and regulatory requirements. Samples are sent to one of the five national lab networks for analysis. Screening is performed first; if results are non-negative, confirmatory testing follows. For DOT-regulated safety-sensitive roles, the federally certified urine protocol under [49 CFR Part 40](https://www.transportation.gov/odapc/part40) is strictly followed. Hair testing is available for non-DOT roles with longer detection windows. No online ordering; call (877) 731-6362 to initiate Specimen types vary by test purpose Non-negative screens always get confirmatory testing DOT urine tests follow federal protocols This process ensures reliable, legally defensible results for employers, courts, [probation](https://amhnationwide.com/hair-follicle-drug-test-probation/) offices, and individuals. DETECTION ## What substances and detection windows apply to drug screenings versus drug tests? Drug screenings typically detect common substances such as marijuana, cocaine, amphetamines, opioids, and PCP. Screening panels vary by client needs. Detection windows depend on the specimen type: urine screens can detect recent use within days, hair tests can show drug use over months, and saliva tests detect very recent use. Drug tests include confirmatory analysis that can identify specific drugs and metabolites with high sensitivity and specificity, reducing false positives from screenings. Detection windows vary by drug, specimen type, and test panel; for example, urine screens detect marijuana for up to 3-30 days depending on usage, while hair tests can detect use up to 90 days or longer. Common drugs screened: marijuana, cocaine, amphetamines, opioids, PCP Urine detection: days to weeks Hair detection: up to 90 days or more Saliva detection: hours to a day Call (877) 731-6362 to discuss the appropriate panel and [detection window](https://amhnationwide.com/hair-follicle-drug-test-detection-window/) for your testing needs. APPLICATIONS ## Who orders drug screenings versus drug tests and why? Employers commonly use drug screenings for [pre-employment](https://amhnationwide.com/pre-employment-hair-testing/) or random workplace testing as a cost-effective initial check. Drug tests are ordered when definitive, legally defensible results are required, such as for court cases, probation compliance, or federal DOT-regulated safety-sensitive positions. Individuals may request drug tests for personal reasons, medical evaluations, or legal documentation. AMH Nationwide supports all requester types by providing access to certified labs and Medical Review Officer services to ensure accurate interpretation of results. Employers: screenings for initial checks, tests for confirmation or compliance Courts and probation: drug tests for legal evidence Individuals: tests for personal or medical reasons Contact AMH Nationwide at (877) 731-6362 to arrange testing tailored to your specific requirements. ## Ready to Schedule a Drug Screening or Drug Test? Contact AMH Nationwide to get started with certified testing through one of our five national lab networks. Call (877) 731-6362 to speak with a representative today. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) RELIABILITY ## Can drug screenings be relied on alone or is confirmatory drug testing necessary? Drug screenings are useful for rapid, initial detection but can produce false positives or negatives due to cross-reactivity or limitations of the technology used. Confirmatory drug testing in a certified lab uses advanced methods such as gas chromatography/mass spectrometry (GC/MS) to definitively identify substances. Every non-negative screening result at AMH Nationwide is reviewed by a certified Medical Review Officer who evaluates potential alternative explanations like prescription medications or passive exposure. For accurate and legally defensible results, confirmatory drug testing is necessary following a positive screening. Screenings: fast but not definitive Confirmatory tests: accurate, specific, legally accepted Medical Review Officer reviews all positive screens Call (877) 731-6362 to ensure your testing includes proper confirmatory procedures and expert review. MISCONCEPTIONS ## Is a drug screening the same as a drug test when it comes to evading detection or passive exposure? Drug screenings and drug tests detect drugs or their metabolites based on scientific measurement; neither can be reliably evaded through common myths or unproven methods. Passive exposure to drugs such as marijuana smoke is unlikely to cause a positive drug test above laboratory cutoff levels. Confirmatory drug tests reviewed by Medical Review Officers interpret results carefully to distinguish legitimate medical use from misuse or contamination. AMH Nationwide labs follow strict protocols to minimize errors and ensure accurate, fair results. No reliable way to evade detection in certified drug tests Passive exposure rarely causes positive results above cutoffs Medical Review Officers evaluate unexpected findings For accurate information about testing limitations and procedures, call (877) 731-6362. AMH Reviewed & Maintained By AMH Nationwide Customer Service AMH Nationwide is BBB A+ accredited and routes every order through Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox, all of which use multiple lab certification agencies and standards such as [SAMHSA](https://www.samhsa.gov/workplace/drug-testing)-aligned laboratory protocols, the ANSI National Accreditation Board for forensic testing and calibration, the College of American Pathologists (CAP), and Clinical Laboratory Improvement Amendments (CLIA). Every non-negative screen is reviewed by a certified Medical Review Officer as part of standard processing before a result is released, and chain-of-custody documentation is maintained on every collection. This page does not constitute medical or legal advice. **Last updated:** July 2026 You May Also Need [Nail Drug TestingNo head or body hair available? A 5-panel fingernail test covers a similar look-back window.Learn more →](https://amhnationwide.com/5-panel-fingernail-drug-test/)[ChildGuard: Environmental ExposureConcerned about a child or loved one? ChildGuard screens for exposure to drugs in their environment.Learn more →](https://amhnationwide.com/5-panel-hair-drug-test-environmental-exposure-childguard/)[Shorten the Detection WindowShortened options like 30 and 60 day hair panels are also available, useful when a urine test’s 1-3 day window is too short.Learn more →](https://amhnationwide.com/30-day-hair-drug-test/)[Hair ETG Alcohol TestAlso need alcohol testing? The hair ETG test screens for alcohol use, and can be added to the same collection.Learn more →](https://amhnationwide.com/etg-and-peth/) Frequently Asked Questions ## Common Questions Common specimens include urine, hair, saliva, and blood. Urine is most frequent for DOT and workplace testing. Hair provides a longer detection window, while saliva detects very recent use. No, non-negative drug screening results are always followed by confirmatory testing in a certified lab to provide definitive identification and avoid false positives. Yes, AMH follows the federally certified urine protocol under 49 CFR Part 40 for DOT-regulated safety-sensitive positions, ensuring compliance with all federal requirements. Turnaround times vary by lab and test panel but typically range from 24 to 72 hours after specimen collection. Confirmatory testing may extend this timeframe. No, AMH does not provide online ordering. All testing begins with a lab order through phone contact at (877) 731-6362 or other official channels. Every non-negative screen is reviewed by a certified Medical Review Officer who evaluates the results for accuracy and considers medical or legal factors before final reporting. Sources • [SAMHSA – Mandatory Guidelines for Federal Workplace Drug Testing Programs](https://www.samhsa.gov/workplace/drug-testing) • [U.S. DOT – 49 CFR Part 40 – Procedures for Transportation Workplace Drug and Alcohol Testing Programs](https://www.transportation.gov/odapc/part40) • [CDC – National Center for Health Statistics – Drug Use FastStats](https://www.cdc.gov/nchs/fastats/drug-use.htm) • [Quest Diagnostics – Employer Solutions, Hair Testing Methodology](https://www.questdiagnostics.com/) • [LabCorp – Occupational Testing Services](https://www.labcorp.com/) ## Ready to get started? AMH Nationwide provides the lab order and arranges collection nationwide. Every non-negative result reviewed by a certified Medical Review Officer. Call (877) 731-6362 or contact us. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) --- **Need a drug, alcohol, HIV or STD test?** AMH Nationwide is a national lab testing agency operating since 2004, with more than 20,000 collection sites across the United States. Hair, urine, fingernail and blood testing, panels from 5 through 19, for individuals and employers. - Call: (877) 731-6377 - Find a collection site: https://amhnationwide.com/locations/ - Full page: https://amhnationwide.com/is-a-drug-screening-the-same-as-a-drug-test/