31,000 drug test tamperings, highest in 30 years, reported in 2023 US workers, mainly due to marijuana positivity.
Drug test cheating among US workers has reached its highest level in over 30 years, with 31,000 out of 5.5 million drug tests showing signs of tampering in 2023, according to Quest Diagnostics Inc. Cheating methods include substituting urine samples with synthetic or animal urine and using additives designed to mask drug use. Marijuana positivity has driven this trend, with recreational use legal in 24 states.
May 15, 2024
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