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LearnClinical Safety ChecksLesson overview

Lesson overview

Reasonableness & Error Checking

Give a finished medication-maths answer a quick second look so wrong units, copied numbers, unit mismatches, decimal errors, missing information and supplied limits are easier to spot.

About 17 minutesClinical Safety ChecksNo account required

Ready when you are

Start with short teaching slides, then answer the lesson questions. Your progress is saved in this browser.

Practise this lesson

Choose Foundation, Beginner, Intermediate or Advanced for this lesson topic.

Learning outcomes

What you will learn

  • check that the final answer uses the unit the question asked for
  • compare the important numbers in the calculation with the original question or label
  • check whether units needed to be matched before calculating
  • use simple bigger/smaller relationships to notice suspicious results
  • check supplied ranges, maximums and missing information separately
  • work backwards to support the arithmetic relationship without treating the reverse check as proof that the source values were correct

Clinical connection

Why this matters

A calculation can go wrong even when the arithmetic looks neat. The wrong number may have been copied, a unit may not have been converted, a decimal may be in the wrong place, or an important value may be missing.

Lesson plan

How the lesson works

  1. 1

    Learn

    Short teaching slides explain one idea at a time with plain-language examples.

  2. 2

    Practise

    Answer calculation or scenario questions and receive immediate feedback.

  3. 3

    Finish

    Complete the lesson mastery check and save your progress on this browser.

Back to Clinical Safety Checks

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