The newest updated manual on Electrocardiography with expanded text covering pertinent Anatomy and Physiology of the heart, circulatory system, respiratory system, how gas exchange takes place, conduction system and the process of how a heart attack takes place. There is also a new section on blood pressure and diseases of the heart. There is a section that deals only with EKG, cardiac cycle, the EKG pattern with an explanation of what each EKG wave represents, the EKG paper and calculations that can be made from the EKG paper, parts of the EKG instrument, preparation of the patient, the placement of the EKG leads, common artifacts and cardiac arrhythmias. A glossary on EKG and heart terminology is also included.