Quest Diagnostics empowers people to take action to improve health outcomes. Derived from one of the world's largest databases of clinical lab results, its diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviours and improve healthcare management. Quest serves one in three adults in the United States and half the country’s physicians and hospitals annually. Its 45,000 employees understand that, in the right hands and with the right context, the company's diagnostic insights can inspire actions that transform lives.