Lisa is a Registered Radiologic Technologist and a Registered Cardiovascular Interventional Technologist by the American Registry of Radiologic Technologists (ARRT). She started working as an x-ray technologist in 1990 and has specialized in cardiac catheterization since 1993. She is also certified in Advance Cardiac Life Support by the American Heart Association.

Kathrin is a Registered Radiologic Technologist by the American Registry of Radiologic Technologists (ARRT). She started working as an x-ray technologist in 1997 and has specialized in cardiac catheterization since December 2001. She is also certified in Advance Cardiac Life Support by the American Heart Association.