Dr. Lynn Hillyer:

An adverse analytical finding on race day either refers to a so-called "prohibited at all times" substance, something that should not be there at all, or to a medication that is present in concentrations that we know to affect horses. If it were a race day, both types of substance would be called as an adverse finding. In out-of-competition testing, only substances that are prohibited at all times, something that should not be there at all, result in a positive or adverse finding. An anabolic steroid is a good example.