Skip to content
RMIT University Library - Learning Lab

Need/have activity 1


Activity 1

Complete the VR formula by analysing the diagram. Click on the ‘Check answer’ button when you have completed the formula. Don't forget to include the appropriate unit of measurement (e.g. "500ml", "40mg").

The patient is prescribed STAT



If the patient is prescribed 15mg of STATE, the strength of STAT at hand is 25mg and the volume of the bottle is 10mL. What is the volume required for the patient?

Formula: VF = (need / have) x (bottleVol / 1)


(15mg / 25mg) x (10ml / 1)

= 6ml