The percentage of Americans testing positive for fentanyl in workplace drug tests is on the rise nationwide although rates are significantly lower in New York, according to a new report from Quest Diagnostics, one of the United States' largest drug-testing labs.

The positivity rate for urine tests indicating the presence of the deadly synthetic opioid was 0.55% in 2024, increasing almost 15% from 0.48% one year earlier, according to an analysis of more than 8 million drug tests nationwide.

But the report also revealed a change of patterns in the use of fentanyl by the U.S. workforce.

For example, just 0.13% of employees nationwide tested positive for fentanyl in pre-employment tests — in which the subject can prepare in advance for the test, the report shows. But the positivity rate f

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