A comprehensive pocket guide for 12 lead EKG. Starting from rhythm identification, rhythm analysis, axis determination, 12 lead EKG analysis, clinical significance and summary of EKG interpretations in a concise pocket sized spiral bound card format. Tremendous amount of information packed in 12 pocket sized pages for easy reference. For detailed explanation and analysis of the content presented, please refer the book ' Basic Concepts of EKG- A simplified Approach'. Durable plastic material with multicolored graphics for easy and accurate use at bedside. A 'must have' for novice and experts alike in Medical, Nursing and allied health professions. Read the reviews to see how people perceive it in real life. Useful to be part of your home medical kit, apple watch or other rhythm monitoring devices.