The rate of substituted or invalid drug tests — an indication of tampering to hide drug use — rose more than six-fold in 2023 versus the prior year, according to a Quest Diagnostics analysis of 9.8 ...
A report from Quest Diagnostics notes that "employees are turning to a dangerous drug like fentanyl after they've passed a ...
Quest reports a sharp rise in fentanyl use in U.S. workplace drug tests, raising concerns about safety, addiction and employee wellness.
The percentage of employees in the general U.S. workforce who had tested positive for fentanyl in random drug tests was far higher than in pre-employment.
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Fentanyl use on the rise in workplace drug tests nationwide but on the decline in NYS, report finds
The positivity rate for urine tests indicating the presence of the deadly synthetic opioid was 0.55% in 2024, increasing ...
SECAUCUS, N.J., Sept. 2, 2025 /PRNewswire/ -- The percentage of employees in the general U.S. workforce testing positive for fentanyl in random drug tests far exceeded those in pre-employment testing, ...
Amid Widespread Recruiting and Retention Challenges, Drug Positivity Increases in Post-Accident Tests at a Faster Rate Than Pre-Employment Tests for Cocaine, Marijuana, Opiates and Oxycodones SECAUCUS ...
SECAUCUS, N.J., May 26, 2021 /PRNewswire/ — The COVID-19 pandemic did not dampen workforce drug testing positivity for marijuana, which continued to increase last year in the general U.S. workforce, ...
Quest Diagnostics has introduced a new pharmacogenomic (PGx) laboratory testing service designed to assist healthcare providers in understanding their patients' genetic responses to specific ...
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