Oral medication calculations

4 marks of the 15 in Part A, which runs for 30 minutes.

This is the biggest numeracy category, and the one you are most likely to be doing on a shift. A prescription, a stock strength on a bottle or a blister pack, and one question: how much do you give?

What this section asks about

  • Tablets and capsules where the prescribed dose is a multiple of the stock strength
  • Scored tablets, where half a tablet is a legitimate answer and a quarter usually is not
  • Oral liquids labelled as a dose in a volume, such as 125 mg in 5 mL
  • Prescriptions written in grams against stock labelled in milligrams

Where the marks go

4 marks of the 15 in Part A, which runs for 30 minutes.

Every numeracy question sits at the apply and analyse level: you are given a situation and asked to work something out, rather than to recall a fact.

Where candidates lose marks

  • Forgetting the conversion. A dose of 1.5 g against 500 mg tablets is three tablets, not one.
  • Using the volume as though it were the strength. In 125 mg/5 mL the strength is 125 mg, and the 5 mL is what carries it.
  • Answering with a number of tablets that cannot be given. Only scored tablets can be halved.

Questions people ask

How many oral medication questions are in Part A?
It is the largest of the six numeracy categories in the published test specification, so expect more of these than of any other single type.
Are the drugs in the questions real?
The drugs and strengths are the ones you meet in UK practice, taken from the BNF. The scenarios are written for practice; they are not past exam questions.

Practise this section

Practice is filtered by section, so you can work on this one on its own. Every account gets 10 new questions a day without a card.