The sixth edition of Dimensional Analysis for Meds: Refocusing on Essential Metric Calculations has been streamlined to present only the essential information. The first chapter begins with an overview of the metric system; as Curren states, 98% of all calculations involve metric measures. The text is structured to feature content in small instructional steps followed by assessments to reinforce what has been learned. To prevent annual hospital drug dose errors, the latest drug dosage abbreviations and metric notations are included giving nurses the knowledge they need to care for their patients safely.