Michael Weinstein, MD, FACS, FCCP, speaks with Jessica Spence, BMR(OT), BSc(Med) MD, a PGY3 Resident at McMaster University. Dr. Spence contributed the article “Variation in Diagnostic Testing in Intensive Care Units: A Comparison of Teaching and Non-Teaching Hospitals in a Regional System” to the January Critical Care Medicine journal. Dr. Spence discusses the importance of studying testing practice, factors influencing testing practice, influence of trainees on testing and strategies to improve the appropriateness of testing.