News
Field guides, regulatory updates, and product breakdowns from the team behind American Screening Corporation's drug testing supplies.
What Happens If You Fail a Pre-Employment Drug Test: The Employer Process
A candidate takes a pre-employment drug test and the result is not a clean negative. What happens next is not a single event. It is a defined sequence with checkpoints, a medical...
Read articleMore from the lab notebook
Page 2 of 25
DOT Supervisor Reasonable Suspicion Training Requirements Explained
Reasonable suspicion testing is the part of a DOT drug and alcohol program that depends entirely on a human judgment call. A supervisor has...
Read article
DOT Drug Test Refusal: What Counts as a Refusal Under 49 CFR Part 40
Under federal transportation drug and alcohol testing rules, a refusal to test is treated exactly like a positive test result. That single fact surprises...
Read article
Does Modafinil Show Up on a Drug Test? Provigil and Amphetamine Screens
Modafinil, sold under the brand name Provigil, is a prescription wakefulness promoting medication used for narcolepsy, obstructive sleep apnea, and shift work sleep disorder....
Read article
Does Melatonin Show Up on a Drug Test? Supplements and Workplace Panels
Melatonin is one of the most common over the counter sleep aids in the country, sold in gas stations, grocery stores, and pharmacies without...
Read article
Does Klonopin Show Up on a Drug Test? Clonazepam and the Benzodiazepine Panel
Klonopin is the brand name for clonazepam, a benzodiazepine prescribed for seizure disorders and panic attacks. Whether it shows up on a drug test...
Read article
Does Hydroxyzine Show Up on a Drug Test? Antihistamines and Standard Panels
Hydroxyzine is an antihistamine sold under brand names such as Atarax and Vistaril, and it is commonly prescribed for anxiety, itching from allergic skin...
Read article
Does Codeine Show Up on a Drug Test? Opiate Cutoffs and Confirmation Explained
Codeine is an opioid, and standard workplace opiate testing is built to catch it. If an employee has taken codeine, whether from a prescription...
Read article
Does Buspirone Show Up on a Drug Test? Buspar and Benzodiazepine Screens
Buspirone, sold under the brand name Buspar among others, is a prescription medication used to treat anxiety. Employees and applicants who take it sometimes...
Read article
Oral Fluid Drug Test Cutoff Levels: HHS, DOT, and Rapid Test Reference
Oral fluid, commonly called a mouth swab or saliva test, works on a different scale than urine testing. The federal government sets specific cutoff...
Read article
Omeprazole and Drug Tests: The THC and Benzodiazepine False Positive Question
Omeprazole is one of the most common medications in the country. It is sold over the counter as Prilosec and by prescription for gastroesophageal...
Read article
Mirtazapine and Drug Tests: Amphetamine and LSD False Positives Explained
Mirtazapine is a tetracyclic antidepressant commonly prescribed for depression, and off label for insomnia and appetite loss, often because it tends to be sedating...
Read article
Last Chance Agreements and Drug Testing: How Employers Structure Them
A last chance agreement is a written arrangement between an employer and an employee who violated a drug or alcohol policy, or committed a...
Read article