Calculating Drug Doses Safely - Elsevier eBook on VitalSource, 2nd Edition
Elsevier eBook on VitalSource®

Calculating Drug Doses Safely - Elsevier eBook on VitalSource, 2nd Edition


This book is designed to help nurses make accurate drug calculations and improve patient safety. It is written in an accessible style to make learning as easy as possible. The simple, clear and friendly approach will be a major help to anyone who hates maths. Real examples from prescriptions and medicine labels are used to simulate actual practice and help make the link with the theory. The range of specialties covered makes the content relevant to all areas of nursing practice.
  • Real-life examples taken from prescriptions and medicine labels will help nurses to relate the mathematical theory to everyday clinical practice
  • Revision of the underlying arithmetic ensures a solid basis
  • A stepped approach allows readers to proceed at their own pace
  • More advanced material is included to suit a range of abilities
  • New ‘How to use this book’ section
  • More examples relating to renal, ITU, drug dosing, fluid balance and a wider range of examples
  • Text restructured so less intimidating material is at the beginning e.g. molarity comes later
  • Level of examples and exercises made clearer



Introduction: Why this book is needed 

How to use this book


Section 1 What you require to do a drug calculation

1 Prescriptions, labels and SI units

2 Arithmetic

Questions on Section 1

Section 2 How to do a drug calculation

3 Drug calculations explained 

4 Calculating oral and other non-parenteral doses 

5 Calculating parenteral doses: small volume 

6 Calculating parenteral doses: large volume 

Questions on Section 2

Section 3 How to do a drug calculation in special situations

7 Calculating in obstetrics

8 Calculating in paediatrics

9 Calculations in liver disease and renal impairment

Supporting information

A Abbreviations

B Arithmetical signs

C Glossary 

D Answers to section questions

E Answers to calculation exercises

F Post-test

G Answers to post-test


George Downie, MSc, FRPharmS, F(Hon)CPP, Director of Pharmacy and Medicines Management, NHS Grampian, Aberdeen, UK, Jean Mackenzie, BA(Open), DipN(Lond), Formerly Lecturer, School of Nursing and Midwifery, Robert Gordon University, Aberdeen, UK and Arthur Williams, OBE, FRPharmS, Formerly Chief Administrative Pharmaceutical Officer, Grampian Orkney, Shetland and Tayside Health Boards, Aberdeen, UK


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