Thomas E. O'Brien, AS, CCT, CRAT, RMA, is the Allied Health Program chairperson at Remington College, Fort Worth, Texas. Tom also works as an author of CME activities and editor with Practical Clinical Skills ( www.practical clinicalskills.com ). He is also on the Board of Trustees and Exam Chair for the Certified Cardiographic Technician and Certified Rhythm Analysis Technician Registry Examinations working with Cardiovascular Credentialing International (CCI). His background includes over 24 years in the U.S. Air Force and U.S. Army Medical Corps. Tom's medical career as an Air Force Independent Duty Medical Technician (IDMT) has taken him all over the United States and the world. He has… several years' experience working in the Emergency Services and Critical Care arena (Cardiothoracic Surgery and Cardiac Cath Lab). He was awarded Master Instructor status by the U.S. Air Force in 1994 upon completion of his teaching practicum. He now has over 15 years of teaching experience; subjects include Emergency Medicine, Cardiovascular Nursing, Fundamentals of Nursing, Dysrhythmias, and 12-Lead ECG Interpretation. His current position provides challenges to meet the ever-changing needs of the medical community and to provide first-rate education to a diverse adult education population.