Master the math skills needed to calculate drug dosages safely and accurately! Math Calculations for Pharmacy Technicians, 4th Edition covers the competencies required by the American Society of Health-System Pharmacists (ASHP). Designed specifically for Pharmacy Technicians, the book includes a review of basic math, conversions between measurement systems, interpretation of drug labels and physicians' orders, and calculation of medications based on a patient's age, body weight, or body surface area. Two basic methods of calculating drug dosages are described: ratio/proportion and dimensional analysis. Simplifying calculation concepts, Elaine Beale&s practical worktext breaks down calculations, provides examples, and contains hundreds of practice problems to help you develop calculation confidence and prepare for a successful career as a Pharmacy Technician.