Quest Diagnostics supports responsible testing with a wide menu of presumptive and definitive drug testing options to identify use of drugs prescribed as well as unexpected presence or absence of drugs or drug classes.
Our expert toxicologists, MDs, and PhDs share unique insights, research, and latest trends in drug monitoring and impact on the drug epidemic across the nation.
Do you know the signs of opioid use disorder? The Centers for Disease Control and Prevention offers a Continuing Medical Education Module on this topic, as part of its effort to reduce the harms from use of opioids and other drugs. You can get started by going to