More and more workers are cheating on drug tests, according to new data from Quest Diagnostics, with tampering rates reaching a 30-year high in 2023. After analyzing nearly 9.8 million workforce drug ...

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, ...

More and more workers in the U.S. are testing positive for fentanyl use during random drug tests, according to new data from Quest Diagnostics. After analyzing more than 8 million workforce drug tests ...

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 ...

Drug Abuse Testing Market is expected to reach US$ 12.77 billion in 2033 from US$ 6.64 billion in 2024, with a CAGR of 7.54% from 2025 to 2033. Rising drug abuse rates, growing public awareness, more ...

Type "beat the drug test" into an Internet search engine, and you come up with more than 100 Web sites devoted to helping foil workplace drug screening. It's part of a technology race, or as Barry ...