Quest Diagnostics Incorporated , a leading national provider of diagnostic information services, announced that Jim Davis, Chairman, CEO and President, and Sam Samad, Executive Vice President and ...

The 5 testing & diagnostics services stocks we track reported a very strong Q3. As a group, revenues beat analysts’ consensus ...

To many NFL players, random drug tests from the league are an inconvenience that sometimes don't feel so random. To Denver Broncos linebacker Alex Singleton, it's something that he's glad happened to ...

The initiative seeks to harmonize DOT testing procedures with HHS guidelines, including updates on urine and oral fluid testing methods. Recent data shows a sharp increase in fentanyl detection in ...

NEW YORK — During a talk at the Jefferies Healthcare Services Conference this week, Quest Diagnostics CFO Sam Samad noted developments within several parts of the company's advanced testing business ...

Guardian’s multiyear distribution agreement with Quest will broaden access to Shield, which is the first blood test to gain Food and Drug Administration approval as a primary screening option for ...

Random drug screenings nationwide are catching workers using fentanyl — and those users increasingly are mixing that potentially lethal opioid with marijuana and amphetamines, according to a major ...

BOSTON--(BUSINESS WIRE)--WHOOP, the human performance company, today announced that Quest Diagnostics (NYSE: DGX), a leading provider of diagnostic information services, will be the U.S. lab provider ...

On September 2, the 2025 Quest Diagnostics Drug Testing Index revealed that the percentage of employees in the general U.S. workforce testing positive for fentanyl in random drug tests far exceeded ...

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 ...