254 ARTICLES · UPDATED WEEKLY

News

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

More from the lab notebook

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What Happens If You Fail a Probation Drug Test

Aug 20, 2026 ·7 min read

What Happens If You Fail a Probation Drug Test

A positive result on a court-ordered drug test does not automatically send someone to jail. It starts a process, and where that process ends...

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Onsite Drug Testing for Employers: How Mobile Collection Events Work

Aug 20, 2026 ·8 min read

Onsite Drug Testing for Employers: How Mobile Collection Events Work

When an employer says they run drug testing "onsite," they mean the collection happens where the workforce already is, not at a clinic across...

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How Long Does Meth Stay in Your System for a Urine Test

Aug 20, 2026 ·6 min read

How Long Does Meth Stay in Your System for a Urine Test

Methamphetamine is one of the most commonly tested analytes on a standard workplace or clinical drug panel, and it is also one of the...

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How Long Lab Confirmation Results Take After a Non Negative Screen

Aug 20, 2026 ·6 min read

How Long Lab Confirmation Results Take After a Non Negative Screen

A rapid drug test that reads non negative is not a finished result. It is a screening flag, and by design that flag has...

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Impairment Testing vs Drug Testing: What Fitness for Duty Programs Add

Aug 20, 2026 ·8 min read

Impairment Testing vs Drug Testing: What Fitness for Duty Programs Add

Ask most safety managers what a drug test tells them and they will say it tells them whether someone used a substance recently enough...

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DOT Physical vs DOT Drug Test: What Each One Covers

Aug 20, 2026 ·7 min read

DOT Physical vs DOT Drug Test: What Each One Covers

Ask a new CDL driver what happens at their DOT physical and most will mention peeing in a cup. Ask them what the cup...

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Court Ordered Alcohol Monitoring: EtG, PEth, SCRAM, and Ignition Interlocks Compared

Aug 20, 2026 ·8 min read

Court Ordered Alcohol Monitoring: EtG, PEth, SCRAM, and Ignition Interlocks Compared

A judge who orders alcohol monitoring is not choosing a single tool. There are several, and they measure different things over different windows of...

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How Anabolic Steroid Testing Works and Who Actually Tests for It

Aug 19, 2026 ·7 min read

How Anabolic Steroid Testing Works and Who Actually Tests for It

If a job applicant or employee passes a standard drug screen, that result says nothing about anabolic steroid use. The immunoassay panels used in...

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Drug Testing Remote and Multi State Employees: A Policy Guide

Aug 19, 2026 ·9 min read

Drug Testing Remote and Multi State Employees: A Policy Guide

A company with a headquarters in one state and employees logging in from a dozen others cannot run drug testing the way it did...

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Phentermine and Drug Tests: Why Amphetamine False Positives Happen

Aug 19, 2026 ·7 min read

Phentermine and Drug Tests: Why Amphetamine False Positives Happen

Phentermine is one of the most commonly prescribed weight loss medications in the country, and it is also one of the more common reasons...

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Nitazenes and Drug Testing: The Synthetic Opioids Standard Panels Miss

Aug 19, 2026 ·7 min read

Nitazenes and Drug Testing: The Synthetic Opioids Standard Panels Miss

A urine cup can come back clean and the person providing that sample can still have a potent synthetic opioid in their system. That...

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Do Muscle Relaxers Show Up on a Drug Test? Carisoprodol and Soma Explained

Aug 19, 2026 ·6 min read

Do Muscle Relaxers Show Up on a Drug Test? Carisoprodol and Soma Explained

A patient on cyclobenzaprine for a back spasm and a patient on carisoprodol for the same complaint are not treated the same way by...

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