Pharmacy Calculations, 6e

By Mary F. Powers, David R. Bright  •  
•  392
Format • 
Print ISBN  9781617318979
• eBook ISBN  9781617318986
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Pharmacy Calculations, 6e, provides pharmacy technician students and professionals with the tools necessary to learn the types of calculations commonly encountered in community and institutional pharmacy. The content of Pharmacy Calculations, 6e, includes material covering the knowledge areas within the Pharmacy Technician Certification Exam (PTCE) and Exam for Certification of Pharmacy Technicians (ExCPT).

This book is clearly written, accurate, and easy to understand. It can be used in a classroom setting or for independent study to develop a careful and systematic approach to pharmacy calculations and can be used as a study aid for the PTCE and ExCPT exams. It aligns with the Fifth Edition of the American Society of Health-System Pharmacists (ASHP) Model Curriculum for Pharmacy Technician Education and Training Programs and the 2020 content outline for the Pharmacy Technician Certification Examination (PTCE).

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What's New in this Edition
Table of Contents
About the Authors
Instructor Resources
  • Carefully worded explanations are direct, easy to understand, and mathematically accurate.
  • Clearly stated Learning Objectives highlight key concepts for each chapter.
  • Clearly defined Key Terms are provided.
  • Full-color photographs and illustrations support the concepts.
  • Rx boxes provide helpful hints and reminders.
  • Many examples throughout the text guide students through the calculations.
  • Adequate space is provided for students to work through problems.
  • A 40-question practice exam is provided with problems similar to those found on the national certification exams.

Online instructor ancillaries include: Login to view Instructor Resources

  • PowerPoint presentations
  • Lesson plans
  • Answers to all the problems, along with guidance to solve each problem
What's New in this Edition

The sixth edition of Pharmacy Calculations has been revised on the basis of student and instructor feedback. Changes to the new edition include:

  • All problems in the book have been checked for accuracy.
  • Many new examples and practice problems have been added throughout the book.
  • Previous (fifth) edition Chapters 3, 6, 8, and 9 covering reducing fractions, writing fractions as decimals, adding and subtracting decimal numbers, and multiplying and dividing decimal numbers have been omitted and all chapter numbers were updated accordingly.
  • Chapter 5 was revised to focus on decimals, and the content on significant figures was omitted.
  • Chapter 6 provides additional content using ratio and proportion calculations and new prescription samples were added to the practice problems.
  • Chapter 7 includes additional information for converting ratios to percents and ratios to decimals.
  • Chapter 9 was revised to include the use of Roman numerals in apothecary measures.
  • Chapter 10 includes additional content on performing calculations with density and specific gravity.
  • Chapter 12 includes content specific to insulin moved to a new chapter (Ch. 13) and also new content and examples pertaining to medication synchronization.
  • Chapter 13 is a new chapter, which has been added to provide additional content on insulin.
  • Chapters 15 and 16 provide revised examples and practice problems to reflect changes in drug pricing.
  • Chapter 18 has been updated to reflect changes in third-party reimbursements and changes in drug pricing.
  • Chapter 20 has been revised to include information about the benefits of calculating gross and net profits, and reflect changes in drug pricing.
  • Chapter 21 has added information about storing pharmacy inventory and refrigerated storage space.
  • Chapter 24 includes a formula for calculating powder volume.
  • Chapter 27 now has revised content for calculating pediatric dosage formulas.
  • Chapter 31 includes an example using alligation with sterile water for injection.
  • Chapter 32 has added content providing further explanation of the PPN abbreviation.
Table of contents
Chapter 1: Numeral Systems Used in Pharmacy
Chapter 2: Numerals, Denominators, and Reciprocals of Fractions
Chapter 3: Adding and Subtracting Fractions
Chapter 4: Multiplying and Dividing Fractions
Chapter 5: Rounding Decimals
Chapter 6: Using Ratio and Proportion or Dimensional Analysis to Solve Pharmacy Calculations
Chapter 7: Percents, Ratios to Percents, and Ratios to Decimals
Chapter 8: Interpreting Prescriptions and Converting Household and Metric Measurements
Chapter 9: Converting Apothecary and Metric Measurements
Chapter 10: Converting Between the Different Temperature Scales and Calculations with Density and Specific Gravity
Chapter 11: Calculations for Compounding
Chapter 12: Calculations for Days Supply
Chapter 13: Calculations for Days Supply of Insulin
Chapter 14: Adjusting Refills for Short-filled Prescriptions
Chapter 15: Calculating for Dispensing Fees, Co-pays, and Difference Pricing
Chapter 16: Calculations for Billing Compounds
Chapter 17: Cash Register Calculations
Chapter 18: Usual and Customary Prices
Chapter 19: Discounts
Chapter 20: Gross and Net Profits
Chapter 21: Inventory Control
Chapter 22: Daily Cash Report
Chapter 23: Parenteral Doses Using Ratio and Proportion Calculations
Chapter 24: Powdered Drug Preparations
Chapter 25: Calculations with Percents
Chapter 26: Using Ratio and Proportion when Preparing Solutions
Chapter 27: Dosage Calculations Based on Body Weight
Chapter 28: Dosage Calculations Based on Body Surface Area
Chapter 29: Infusion Rates and Drip Rates
Chapter 30: Dilutions
Chapter 31: Alligations
Chapter 32: Parenteral Nutrition Calculations
Chapter 33: Dosage Calculations from Medication Labels
Appendix A: Practice Exam
Appendix B: Answers to Practice Problems
About the Authors
Instructor Resources
  • PowerPoint presentations
  • Lesson plans
  • Answers to all the problems, along with guidance to solve each problem