Medicines Optimisation Training Portal

Introduction to Medicines Calculations

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This workbook has been designed for any healthcare professional requiring an understanding of drug doses and quantities and gaining confidence in performing a variety of medicines calculations. Divided into sections, it covers a variety of calculations explanations and examples with calculations practice content covering two levels of assessments; basic application and complex calculations. It should be completed after the eLearning medicines optimisation module 5 Calculating Drug Doses.

Level 1 tests your basic application of skill and understanding in:

  • Preparation and administration of oral and injectable medicines
  • Conversion of units
  • Measurement of medicines, drug strengths and volumes
  • Decimal place errors
  • Moles and millimoles in solution explanation
  • Paediatric calculations
  • Using sources of information

Level 2 tests your skills in more complex calculations:

  • Preparation and administration of oral and injectable medicines
  • Calculation of infusion rates
  • Calculations based on body weights
  • Moles and millimoles formula and calculations
  • Complex paediatric and neonatal calculations
  • Renal function calculations and doses for the elderly
  • Using sources of information

Additional information

This workbook contains practice example drug calculations which will help to develop the skills necessary to perform medicines calculations accurately and consistently.

Resource details

Contributed by: Medicines Optimisation Training Portal
Authored by: HEE North East and Yorkshire (NEY)
Licence: Creative commons: Attribution-NonCommercial 4.0 International More information on licences
First contributed: 15 February 2023
Audience access level: Full user


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