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NSWMaths Standard 2Quick questions
Year 11: Algebra
Quick questions on Medication dosages for HSC Maths Standard 2
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is choosing the right rule?Show answer
The whole skill is matching the rule to the information given, then substituting. A quick decision guide:
What is working out an IV drip rate?Show answer
An IV drip delivers fluid one drop at a time. The flow-rate formula turns the order (a volume over a time) into a setting the nurse can count: drops per minute. The schematic below shows the three quantities that feed the formula. The volume comes from the bag, the drop factor is stamped on the giving set (the tube and chamber), and the time is the duration ordered.
What is working out a drip rate stage by stage?Show answer
The drip-rate calculation is short, but it is the one most students get wrong, because of the hidden unit conversion. The four stages below take the saline infusion from the worked example, mL over hours with a drop factor of drops per mL, through to a whole-number flow rate. The key decision is converting the time to minutes before substituting.
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