As an Affiliate of ExamOne, A Quest Diagnostics Company We offer in-center and mobile exam options to make the paramedical exam as quick and easy as possible for your applicants. We cover most of Oklahoma. If your applicants are in an area we are unable to cover, we can transfer your order to the ExamOne office that does. You can place exam orders by phone or online. If you need assistance setting-up online ordering, please contact us directly. NON-DOT Drug Screens