Dosage Calculations for Nurses

By June L. Olson, et al.

February 2010

Pearson Education

Distributed by Trans-Atlantic Publications

ISBN: 9780132068840

293 pages, Illustrated

$37.50 Paper original

This comprehensive and easy-to-use guide for dosage calculations and drug administration is an excellent reference guide for nursing and healthcare professionals. Critical thinking case studies, practice tests, and exercises prepare students for real calculations so they can confidently calculate safe and accurate dosage levels

With a workbook style, comprehensive coverage and over 1,000 problems and answers, ‘

Dosage Calculations for Nurses’allows the student to work at their own pace in the areas where they feel need the most support.

Contents

Unit 1 Basic Calculation Skills and Introduction to Medical Administration

CHAPTER 1Review of Arithmetic for Medical Dosage CalculationsShort Diagnostic Test (level of comfort with numbers)

Fundamental Skills for Calcualtions

Explaining Decimals and Fractions

Changing Decimal Numbers and Whole Numbers to Fractions

Changing Fractions to Decimal Numbers

Rounding Decimal Numbers

Rounding Numbers (Up or Down)

Multiplying and Dividing Decimal Numbers

Multiplying and Dividing Fractions

Complex Fractions

Percentages

Practice Sets

Reflection Exercise

CASE STUDY (1.1)

CHAPTER 2Safe and Accurate Drug AdministrationThe Drug Administration Process

Who Administers Drugs?

Six Rights of Medication Administration

The Right Drug

The Right Dose

The Right Route

The Right Time

The Right Patient

The Right Documentation

Drug Prescriptions

Medication Orders and Administration Records

Prescription Forms

Prescription Variations

Components of a Prescription Medication Administration Records

Computerized Recordkeeping

Drug Labels

Drug Package Inserts

Practice Sets

CHAPTER 3Changing Units of MeasurementIntroduction toUnits of measurment and Conversion

The Mathematical Foundation Changing a Single Unit of Measurement to Another Single Unit of Measurement

Simple Problems With Single Units of Measurement

Complex Problems with Single Units of Measurement

Changing One Rate to Another Rate

Simple Problems With Rates

Complex Problems With Rates

Practice Sets

CHAPTER 4The Metric Measurement SystemsThe Metric System

Liquid Volume Measurements

Weight Measures

Length Measures

Shortcut for Converting Units in the Metric System

Measurements in the Imperial Measurements System

Unit 2 Oral and Parenteral Medications

CHAPTER 5Calculating Oral Medication DosesSimple Problems

Medication in Solid Form

Medication in Liquid Form

Medications Measured in Millimoles

Complex Problems

Calculating Dosage by Body Weight

Calculating Dosage by Body Surface Area

BSA Formulas

Nomograms

Case Study 5.1Practice Reading Labels

Practice Sets

CHAPTER 6SyringesParts of a Syringe

Needles

Types of Syringes

Measuring Insulin Doses

Measuring a Single Dose of Insulin in an Insulin Syringe

Measuring Two Types of Insulin in One Syringe

Measuring Premixed Insulin

Safety Syringes

Case Study 6.1 153Reflection on Practice

Practice Sets 157

CHAPTER 7Solutions and Drug Strengths or ConcentrationsDetermining the Strength of a Medication

Pure Drugs in Liquid Form

Pure Drugs in Dry Form

Determining the Amount of Pure Drug in a Given Amount of Solution

Determining the Amount of Solution That Contains a Given Amount of Pure Drug

Molar Solution and Molarity

Drugs Measured in Units

Case Study 7.1 183Practice Sets

CHAPTER 8Parenteral MedicationsParenteral Medications

Parenteral Medications Supplied as Liquids

Parenteral Medications Supplied in Powdered Form

Heparin

Case Study 8.1Practice Sets

Unit 3 Infusions and Paediatric Dosages

CHAPTER 9Calculating Flow Rates and Durations of Enteral and Intravenous InfusionsIntroduction to Intravenous and Enteral Solutions

Enteral Feedings

Intravenous Infusions

Intravenous Solutions

Equipment for IV Infusions

Infusion Pumps

Calculating the Flow Rate of Infusions

Calculating the Duration of Flow for IV and Enteral Solutions

Case Study 9.1Practice Sets

CHAPTER 10Calculating Flow Rates for Intravenous MedicationsIntravenous Administration of Medications

Secondary Intravenous Infusion Lines

Calculating Flow Rates Based on Body Weight

Titrating Medications

Calculating Flow Rates Based on Body Surface Area

Case Study 10.1Practice Sets

CHAPTER 11Calculating Paediatric DosagesSafe Paediatric Drug Dosages

Administration of Oral and Parenteral Medications

Oral Medications

Parenteral Medications

Calculating Drug Dosages by Body Weight

Calculating Drug Dosages by Body Surface Area

Administration of Intravenous Medications Using a Volume Control Chamber

Calculating Daily Fluid Maintenance

Case Study 11.1Practice Sets

Comprehensive Self-Tests

Appendices

Appendix AAnswer Section

Appendix BCommon Abbreviations Used in Medical Documentation

Appendix CSummary of Units of Measurement in

Appendix ETables of Weight Conversions

Appendix FRatio and Proportion Method for Dosage Calculation

Index

Key Features:

- Covers safe drug administration, systems of measurement, oral and parenteral medications, solutions and paediatric dosages
- A ‘Maths Review’ helps the student to brush up on their maths skills
- Both generic and trade drug names are covered
- Critical thinking case studies, practice tests and exercises prepare students for real calculations
- Comprehensive ‘Workspace’ sections at the end of each chapter ensure understanding of difficult concepts