Dosage Calculation: IV Flow Rates and Infusion Times Practice Questions

Description

IV calculation review usually runs on guesswork. A class works a set of problems, some students finish quickly, some stall, and the instructor still has no clear picture of whether the group is losing marks on gravity drop factors, on unit conversions in heparin and insulin infusions, or on the weight-based work that ties mcg/kg/min to mL/hr. Review time then gets spread evenly across all of it, which spends the same twenty minutes on the part the group already handles and the part it does not. This set is built so you can see the pattern before you plan the session. Inside are 39 questions in total. A 10-question diagnostic (Form A) samples all five content areas: IV flow rate by gravity using drop factor and drops per minute, infusion time along with completion time and volume remaining, pump rate determination in millilitres per hour, units-based infusions covering heparin and insulin concentration conversions, and weight-based continuous infusions. A matched retest (Form B) mirrors Form A item for item. Between them sit 19 practice questions grouped by area so you can assign only the sections that need work. You also get a scoring table that maps each missed item back to its content area, a fact sheet of the misconceptions that produce the most common wrong answers, and an answer key that explains every option, not just the correct one. A typical run takes a week or two. Give Form A early in the unit and use the scoring table to rank the five areas by group weakness. Teach or reteach the top two, assign the matching practice sets as homework or small-group work, then run Form B at the end. Because the forms are matched rather than identical, a change between them reflects the calculation being understood rather than the answers being remembered from the first sitting. The per-option explanations are the part instructors tend to use most. Each distractor is traced back to a specific error: dividing by 60 in the wrong place, treating drop factor as a constant, reading a heparin bag concentration as units per millilitre when it is units per bag, dropping the weight step in a mcg/kg/min conversion. That means you can hand a student their marked paper and the key does the diagnostic conversation for you. Every answer in the file was independently verified before publication. Questions that failed verification were removed rather than rewritten, which is why the count is 39 and not a rounder number. This suits nursing programmes, allied health courses, pharmacology and medical mathematics units at the college level, and clinical educators running refresher sessions with staff. It also works for a homeschool or tutoring context where an adult with the key can mark and discuss the work. It is not a teaching text: there are no worked lessons on ratio and proportion or dimensional analysis, so students who have never met the formulas will need instruction first. It also does not cover paediatric dosing by body surface area, reconstitution, or oral dose calculation. Delivered as a printable PDF, ready to photocopy or post to your LMS.

AI note: The written content of this resource was drafted with AI tools, then reviewed by the author.