Revise — drug calculations

Revise drug calculations: the week before your assessment

What to do in the final week: find your weak spots, fill the gaps and practise against the clock.

The week before, day by day

You will not learn everything in a week. Prioritise what you almost know already and what earns the most marks.

01

Seven to five days to go: map your weak spots

Take a mixed test and sort your mistakes by topic. That shows you where the marks are.

02

Four to three days to go: fill the gaps

Go back over the theory for your weakest topics and redo the questions until they stick.

03

Two days to go: mixed and timed

Work through a whole test within the time limit of your assessment. Mark it and correct your mistakes.

04

The day before: light revision

Go over the formulas and your most common mistakes. Get a good night's sleep.

05

On the day: always check

Read the question twice, check the units and do a sense check.

More tips: drug calculation tips.

What to know by heart

Keep the formulas in one place.

Amount = Prescribed dose ÷ Strength
Drops/min = (Volume × Drop factor) ÷ Time in minutes
C1 × V1 = C2 × V2

All the formulas are in the formulas page.

Frequently asked questions

How do you revise drug calculations?+

Work through questions, go over your mistakes and revise the formulas. Reading is not enough, you have to calculate.

How much can I cover in a week?+

You can improve the topics you almost know already and fill a few gaps. Start by mapping your mistakes.

What should I do the day before my assessment?+

Light revision of formulas and common mistakes, and get a good night's sleep.

Is there an app for revising?+

Yes. Dos has practice tests and a built-in calculator.

See the full drug calculation formulas →

Find your weak spots in Dos

The last week starts with knowing where the marks are. A test in Dos shows your results per topic straight away.