<P><B></B> Utilizing a simple, systematic approach, this comprehensive and practical book provides readers with all the tools necessary to solve just about every type of dosage and calculation problem. A step-by-step approach guides learners through the areas that pose the greatest challenges: mathematics, systems of measurement, the metric system, and systematic drug dosage calculation problem solving. <B></B> Section I focuses on fractions and basic algebra functions essential to understanding and solving drug dose calculation. Section II discusses the history of systems of measurement, reviews the old customary system, and provides a complete explanation of the metric system and the federally approved rules governing the metric system in the United States. Section II explains in detail each type of dosage calculation problem that may be encountered in the emergency setting, with each chapter providing the building blocks for the next <B></B> For the special group of professionals who dedicate themselves to the service of emergency patients. </P>