This instructor's lesson plan guide on the cardiovascular system is one of fifteen modules designed for use in the training of emergency medical technicians (paramedics). Seven units of study are presented: (1) the anatomy and physiology of the cardiovascular system; (2) patient assessment for the cardiac patient; (3) pathophysiology; (4) reading and understanding a normal electrocardiogram; (5) arrhythmia recognition; (6) treatment of the arrhythmia, specifically with cardiac drugs, and such skills as cardiopulmonary resuscitation, defibrillation and cardioversion, and rotating tourniquets; and (7) clinical experience in the emergency department and the intensive care unit/coronary care unit. Each unit contains these elements: behavioral objectives, teaching procedures, a content outline, demonstration outline, list of needed equipment and materials, and guidelines for activities to be performed by students applying the skills. Skill evaluation sheets are provided. It is suggested that each module can be presented individually or combined with other modules to construct a course for a selected group of students. (CE 017 514 is a course guide for use in planning and implementing the total training program.) (JH)