Golden Jubilee National Hospital 1 article published in JoVE Medicine Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function Daniel T. Y. Ang1,2, Novalia P. Sidik1,2, Andrew J. Morrow1,2, Robert Sykes1,2, Margaret B. McEntegart1, Colin Berry1,2 1Department of Cardiology, Golden Jubilee National Hospital, 2British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow The purpose of this practical guide is to provide information on the preparation and administration of an interventional diagnostic procedure in clinical practice. It discusses some key preparation and safety considerations, as well as tips for procedural success.