News
Field guides, regulatory updates, and product breakdowns from the team behind American Screening Corporation's drug testing supplies.

Nursing Home Employee Drug Testing: A Guide for Long Term Care Facilities
Skilled nursing facilities, assisted living communities, and other long term care settings carry a combination of risk factors that few other workplaces share. Staff have routine, often unsupervised access to controlled substances....
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How Long Do Drugs Stay in Your Blood? Detection Windows by Substance
Of the four specimen types used in drug testing, blood has the shortest detection window by far. A urine test can pick up marijuana...
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Does Ritalin Show Up on a Drug Test? Methylphenidate Explained
Employers and treatment program staff often assume that any stimulant medication will light up a standard drug panel the same way. That assumption causes...
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Does Narcan Show Up on a Drug Test? Naloxone and Screening Panels
Employers, treatment program staff, and safety managers ask this question more often as naloxone becomes a fixture in workplace first aid kits, school nurse...
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Creatinine Levels on a Drug Test: What Low, Normal, and Dilute Mean
A urine drug test does more than look for drug metabolites. Every laboratory that processes a federally regulated specimen, and most labs that process...
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Coast Guard Drug Testing Requirements: What Maritime Employers Must Run
If you operate commercial vessels, manage a fleet, or run a marina employing credentialed mariners, the Coast Guard does not leave your drug and...
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THC Breathalyzers: Where Marijuana Breath Testing Actually Stands
Every safety manager who has dealt with an alcohol breathalyzer eventually asks the same question about marijuana. If a handheld device can tell whether...
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Split Specimen Drug Tests: How the Split Sample Process Works
Every DOT regulated urine drug test is a split specimen collection. That single design choice, built into 49 CFR Part 40, gives an employee...
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School Bus Driver Drug Testing Requirements Explained
Most people who drive a school bus hold a commercial driver's license, usually with a passenger endorsement and a school bus endorsement added on...
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PHMSA Drug and Alcohol Testing: Pipeline Operator Requirements
Pipeline operators do not fall under the drug testing rule most people know best. Trucking answers to the Federal Motor Carrier Safety Administration, aviation...
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Metformin and Drug Tests: The Amphetamine False Positive Explained
Metformin is one of the most commonly prescribed medications in the country, used by millions of people to manage type 2 diabetes. It is...
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Hospital Employee Drug Testing: Panels, Policies, and Diversion
Yes, hospitals drug test employees, but not the way most people assume. There is no single federal law that requires it. What actually drives...
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