Online Pharmacy Resource Portal for Pharmacists amp; Pre-Reg Pharmacists
 
Home
Pharmacy and Medical News
Clinical Pharmacy
Pharmacy Law and Ethics
Patient Counselling
Public Health & Health Promotion
Evidence-Based Medicine
Pharmacist
Pre-Reg Pharmacist



Home > Pre-Reg Pharmacist > Practice Pharmacy Calculations

Practice Pharmacy Calculations

Calculations 1: Pre-course Material

Aim of Calculations 1

To provide you with a basic knowledge of how to perform calculation questions relating to:

  • Dilutions
  • Concentrations and
  • Infusions
Source: lpet.nhs.uk
Pharmacy Resource: Presentation
Register to Access Content: No

Last Checked: 17/10/13 Link Error: Report It

 

Drug Calculations 2

This Booklet is designed to accompany Booklet 1 and is structured to contain at the start some examples of calculations that students have stated they find difficult followed by a step by step approach to solving the problem

Source: lpet.nhs.uk
Pharmacy Resource: Booklet
Register to Access Content: No

Last Checked: 17/10/13 Link Error: Report It

 

Calculating doses

These short presentations take you through the steps in how to calculate the doses you need to give a patient.

Source: flinders.edu.au
Pharmacy Resource: Presentations
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Calculation Skills
Paediatric Nursing

This guide is for all nurses working with neonates, children and young people to support their learning and revision of calculation skills. It does not cover every type of calculation but aims to provide guidance and practical exercises for commonly encountered problems. The guide starts with straightforward calculations and progresses to more complex ones, such as those needed by nurses working in paediatric intensive care. Examples used include medication based on body weight; although paediatric drug dosages may sometimes be based on surface area, these calculations are not covered here.

Source: cardiff.ac.uk
Pharmacy Resource: Guide
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Paediatric Drug Calculations

Contents

  • Metric Units
  • Dosage Calculations
  • Volume Drug Calculations
  • Percentage Calculations
  • Ratio Calculations
  • Normal Fluid Requirements
  • Restricted Fluids
  • Rehydration
  • Answers
Source: uhs.nhs.uk
Pharmacy Resource: Workbook
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Drug Dosage Calculations

This handout covers a variety of numeracy based tasks which nurses and midwives may be required to perform in practice. These include drug calculations and setting drip rates on the controls of intravenous infusion controllers.

The handout covers the following: SI units and conversions, calculating drug quantities in both tablet and liquid form, and calculating intravenous flow rates and drip rates. Exercises are included at the end of each lesson. Answers are on the back page.

Source: nottingham.ac.uk
Pharmacy Resource: Handout
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Pharmacy Calculations

Objectives

  • Review basic mathematics
  • Review units of measure
  • Review ratios and proportions
  • Review concentration and dilution
  • Review intravenous flow (drip) rate calculations
  • Provide sample problems and solutions
Source: uky.edu
Pharmacy Resource: Computer Based Learning Course
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Drug Calculations Online

The following online learning package has been created to guide you through the process of mastering the required mathematical skills necessary to accurately calculate drug dosages.

Sessions to be completed

  1. Introduction
  2. Basics
    1. Multiplication
    2. Division
    3. Fractions
  3. Metric Conversions
  4. Estimation
  5. Drug Calculations
    1. Reading A Drug Label
    2. Dosage Calculations
    3. Oral Drug Dosages
    4. Injectable Drug Dosages
    5. Paediatric Drug Dosages
    6. Infusion Device/Pump Administration
Source: rmit.edu.au
Pharmacy Resource: Online Learning Package
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Nursing Medication Calculation Formulae

Formula sheet for nursing students including dosage, drop and infusion rates, unit conversion and BMI calculations contributed to the mathcentre Community Project by Shazia Ahmed, University of Glasgow. The leaflet is designed to be printed double-sided on A4 paper and folded into quarters lengthwise first.

Source: mathcentre.ac.uk
Pharmacy Resource: Leaflet
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Dilution of solutions for nurses

This leaflet explains how dilution calculations are performed.

Source: mathcentre.ac.uk
Pharmacy Resource: Leaflet
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Maths for Healthcare Professionals

Contents

Fractions
Decimals
Ratio
Percentages
BMI
Averages
Unit Conversion
Dosage Calculations

Source: hull.ac.uk
Pharmacy Resource: Guide
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Maths for Medical Calculations

An overview of the tutorial of basic maths for nurses, the concepts in this tutorial could also be used by the education students.

Source: csu.edu.au
Pharmacy Resource: Tutorial
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Numeracy

The exercise is in three parts. First, there is a Tutorial which you should work through first of all at your own pace, particularly if you are uncertain of some of the concepts dealt with. You should then attempt the Level 1 test.

Finally, you should move on to the Level 2 test, which is a bit more challenging. Again, answers are provided and you can repeat the test as often as you like.

Tutorial

A. Units, Amounts and Concentrations
B. Dilutions

Level 1 Test

Level 2 Test

Source: liv.ac.uk
Pharmacy Resource: Exercise
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Numeracy - The Essentials

The following guide will provide an overview of the basic numeracy skills required for first year Nursing students.

Contents   

  1. Place Value 
  2. Times Tables 
  3. Addition 
  4. Multiplication 
  5. Subtraction 
  6. Division 
  7. Combined Functions 
  8. Converting Weights 
  9. Fractions & Decimals 
  10. Basic Drug Calculations 
  11. Percentages 
Source: qub.ac.uk
Pharmacy Resource: Guide
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

MEP Help Modules

These modules cover the 10 topics listed.

  1. Algebra
  2. Decimals
  3. Equations
  4. Fractions
  5. Geometry
  6. Handling Data
  7. Mensuration
  8. Numbers
  9. Percentages
  10. Probability
Source: cimt.plymouth.ac.uk
Pharmacy Resource: Modules
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Misconceptions

There are many misconceptions in people's understanding of mathematics which ultimately give rise to errors. The authors have identified 24 of those most commonly found and of these, the first 8 are listed below.

  1. Rounding Numbers
  2. Multiplication can Increase or Decrease a Number
  3. Multiplying Decimals
  4. Decimals and their Equivalent Fractions
  5. Dividing Whole Numbers by Fractions
  6. Adding with Negative Numbers
  7. Calculations with Negative Numbers
  8. Calculations with Hundreds and Thousands
Source: cimt.plymouth.ac.uk
Pharmacy Resource: Questions and Answers
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

The Four Operations

It is important to be able to use the four operations (addition, subtraction, multiplication or division) proficiently. As part of your nursing calculations you will need to carry out one or more of these operations. This worksheet provides a revision of these four maths operations.

Source: csu.edu.au
Pharmacy Resource: Worksheet
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

Session 1: Review of Arithmetic for Drug Calculation

The process of drug calculations involves arithmetic which deals with the study of numbers. This session will cover:

  • A review of mathematical terms
  • Multiplication and division by 10, 100 and 1000
  • Multiplication of decimals Conversion of units

Session 1: Answers

Source: tees.ac.uk
Pharmacy Resource: Workbook and Answers
Register to Access Content: No

Last Checked: 07/11/13 Link Error: Report It

 

The operations with decimal numbers

There will be times when calculations involve decimal numbers. All students need to be familiar with how to add, subtract, multiply and divide decimal numbers.

Source: csu.edu.au
Pharmacy Resource: Sheet
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

Working with fractions

Most of the medication formulae are in a fraction format so it is important to become comfortable with working with fractions.

Source: csu.edu.au
Pharmacy Resource: Sheet
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

Session 2: Review of Arithmetic of Fractions used in Drug Calculations

The arithmetic of fractions is very important groundwork which must be known before calculation of quantity of drugs given to patients.

Session 2: Answers

Source: tees.ac.uk
Pharmacy Resource: Workbook and Answers
Register to Access Content: No

Last Checked: 17/10/13 Link Error: Report It

 

Converting fractions to decimals

Answers to medication calculations are required in a decimal format in order to draw up or measure out a dose. As most of the formulae you will meet are in a fraction form, a conversion to a decimal answer usually needs to be made.

Source: csu.edu.au
Pharmacy Resource: Sheet
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

Session 3: Application of fractions in calculations of dosages of tablets, syrups and suspensions

Drugs are administered via several routes, including by injections, by intravenous infusion or orally. Oral medication is the first medication that a student nurse will learn to calculate for patients.

Session 3: Answers

Source: tees.ac.uk
Pharmacy Resource: Workbook and Answers
Register to Access Content: No

Last Checked: 17/10/13 Link Error: Report It

 

Percentages

When working with solution strengths percentages are involved. Working with percentages requires a sound knowledge of fractions so you may like to review the fractions document before proceeding.

Source: csu.edu.au
Pharmacy Resource: Sheet
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

Metric conversions

It is necessary to ensure that units of measurement are consistent when carrying out medication calculations. This may require units to be converted.

Source: csu.edu.au
Pharmacy Resource: Sheet
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

Drug Calculations 1- Converting units

Converting metric units for nurses and nurses in training

Source: youtube.com
Pharmacy Resource: Video
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Numeracy Skills for Drug Calculations

Drug Calculations are only a small part of nursing but nevertheless important. These e-learning resources should equip you with essential numeracy skills and help you with exam preparation. The materials have been split into sections so begin by choosing your year and intake and work through the topics you require.

Year 1

Basic Drug Calculations
Conversions
Drip Rates
Fluid Balance Charts
Labels
mLs per hour
Percentages
Tablets

Year 2

Intermediate Drug Calculations
Conversions
Drip Rates
Labels
mLs per hour
Percentages
Tablets

Year 2 Child Examples

Maintenance Fluids
Difficult Drug Calculations
Intermediate Drug Calculations
Conversions
Drip Rates
Labels
mLs per hour
Percentages
Tablets
Time

Year 3

Intermediate Drug Calculations
Conversions
Drip Rates
mLs per hour
Percentages
Time

Year 3 Child Examples

Maintenance Fluids
Difficult Drug Calculations
Intermediate Drug Calculations
Conversions
Drip Rates
mLs per hour
Percentages
Time

Source: qub.ac.uk
Pharmacy Resource: e-Learning
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

A Numeracy Refresher

Many students worry about anything to do with numbers, having done little since their GCSEs. This booklet has been designed to offer practice and explanation in basic processes

Contents

  1. Decimals
  2. Fractions
  3. Approximations
  4. Averages
  5. Percentages
  6. Ratios
  7. Answers
Source: mathcentre.ac.uk
Pharmacy Resource: Booklet
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Numeracy Skills

All healthcare professionals require a reasonable level of numeracy for the safe administration of medicines and fluids, budgeting and the interpretation of statistics.

This course is designed for you to work through on your own.

  • Decimals
  • Percentages
  • SI Units
  • Ratios
  • Formulae Calculations
Source: uwe.ac.uk
Pharmacy Resource: Course
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Numerical Assessment in Practice Workbook

Contents
Metric systems
Unit Conversions
Oral liquids
Drip Rates
Drug Dosages for Injection

Source: uwe.ac.uk
Pharmacy Resource: Workbook
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

 

Nursing Calculations Workbook

Metric Conversions
Giving the Correct Amount of Tablets
Giving the Correct Amount for Injection
Body Weight Calculations (single dose)
Body weight calculations (TDD and divided doses)
Infusion Rate Calculations (ml/hour)
Infusion Rate Calculations (drops/minute)
Calculating Infusion Times
Calculating Infusion Volumes
Working with Percentage Strength

Source: unihub.mdx.ac.uk
Pharmacy Resource: Workbook
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Medication Calculation Practice Problems

Source: cookchildrens.org
Pharmacy Resource: Questions and Answers
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Drug Calculations

Read the following information carefully before attempting the examples and exercises.

Source: pearson.com.au
Pharmacy Resource: Examples and Exercises
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Maths and Clinical Calculations Workbook

Section 1: Decimals, Fractions & Percentages
Section 2: The SI Units - Weight & Volume
Section 3: Drug Doses & Clinical Calculations
Section 4: Body Mass Index

Source: scionpublishing.com
Pharmacy Resource: Workbook
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Math Quizzes - Drug Calculations

Drug calculations in liquid form
Drug calculations in tablet form
Mixed drug calculations

Source: library.leeds.ac.uk
Pharmacy Resource: Quizzes
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Medication Calculations - part 1

This sheet will teach you to:

  • Calculate volume required for an injected dose and oral dose
  • Work with paediatric doses

Medication Calculations - part 2

This sheet will teach you to:

  • Calculate flow rate of IV infusions in mL/h
  • Calculate IV infusion drip rates
  • Find volume and time of IV infusions
Source: csu.edu.au
Pharmacy Resource: Questions and Solutions
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Drug Calculations

When calculating how much of a drug is required, working with the formula helps the accuracy of the calculation.

Source: cdhb.govt.nz
Pharmacy Resource: Questions and Answers
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Drug Calculations

On successful completion of this module you should be able to:

  • Read drug calculation problems correctly
  • Recognise the different types of drug calculations
  • Recognise the solutions and units needed in drug calculation problems.
Source: sci.usq.edu.au
Pharmacy Resource: Module
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

IV Drug Calculations

  • Section 1: Units & Equivalences
  • Section 2: Calculating dose as volume
  • Section 3: Drug Strengths & Stated Concentrations
  • Section 4: Duration of Infusion – Stated rate (dose per min) & Infusion rate (mL/hr)
  • Section 5: Infusion Rate Calculations
Source: nhsggc.org.uk
Pharmacy Resource: Handout
Register to Access Content: No

Last Checked: 15/10/13 Link Error: Report It

 

Intravenous therapy: Drug calculations and medication issues

The remit of this paper is to illustrate the different facets of drug calculations, to explore the occurrence of common medication errors and briefly describe factors that influence the incidence of adverse drug events.

Source: infantgrapevine.co.uk
Pharmacy Resource: Journal Article
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Calculating I.V. drip rates with confidence

To boost your confidence, this article presents simplified equations to help you breeze through selected I.V. drip rate calculations.

Source: americannursetoday.com
Pharmacy Resource: Journal Article
Register to Access Content: No

Last Checked: 15/10/13  Link Error: Report It

 

Guide to Intravenous Therapy Calculations

Source: wlv.ac.uk
Pharmacy Resource: Guide
Register to Access Content: No

Last Checked: 15/10/13   Link Error: Report It

 

Site Map