Lesson overview
Weight-Based Dosing
Use a patient’s weight to work out a medication dose, and only continue to mL when the question asks for a liquid volume.
About 22 minutesCore Medication CalculationsNo account required
Learning outcomes
What you will learn
- explain what mg/kg means in plain English
- tell the difference between mg/kg/dose and mg/kg/day
- use a weight in kg to calculate a medication dose in mg
- split a daily total into equal doses only when the order tells you to
- convert pounds to kilograms for a supplied practice problem while recognising that clinical medication weights should be verified and documented in kg
- recognise when medicine-specific maximums, obesity or enteral-route considerations require a separate authorised check
- convert a calculated mg dose into mL only when a liquid volume is required
Clinical connection
Why this matters
Weight-based questions become confusing when /dose and /day are treated as the same instruction, or when the weight, medicine dose and liquid volume are mixed into one calculation. Keeping each job separate makes the maths easier to follow and check.
Lesson plan
How the lesson works
- 1
Learn
Short teaching slides explain one idea at a time with plain-language examples.
- 2
Practise
Answer calculation or scenario questions and receive immediate feedback.
- 3
Finish
Complete the lesson mastery check and save your progress on this browser.