You can download Dosage Calculations A Ratio-Proportion Approach 4th Edition by Gloria D. Pickar, Amy Pickar Abernethy free in pdf format.
DOSAGE CALCULATIONS: A RATIO-PROPORTION APPROACH, 4th Edition, is extremely reader friendly, and includes a comprehensive math review, full-color drug labels, and numerous critical thinking assessments. It carefully examines both basic and advanced calculations, including intravenous medications and those specific to the pediatric patient. Reducing the math anxiety that many readers have, the text’s unique three-step method of calculating dosages-Convert, Think, Calculate-trains students to approach calculations logically and with a decreased risk of medication errors. This edition reflects the most current drugs and protocol, regulations on medication abbreviations, medication administration technologies, and safe medication practices.