Reasons for Drug Testing
We perform more than 9 million drug tests annually as a leading drug test provider. Learn more about the most common reasons for testing, including pre-employment and random.
Products and Services
We offer a broad range of drug screening options that allow you to combine and customize your program to meet your unique business needs, all from a single, convenient provider.
By choosing Quest Diagnostics as your drug testing provider, you will gain all of the advantages of proven technology, coupled with personal service and support.