POP QUIZ: Quick Conversions

Kristen Lindauer, PharmD, BCPS, AAHIVP -

Test yourself on the conversion questions below. See how much you know [or don't know wink wink)

I'm not sure about you, but I always appreciate a quick knowledge check and confidence boost. Below you will find simple quizzes to (hopefully) start your morning on a positive note!

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Section 1 Questions (quick knowledge)

  1. 1 teaspoon (tsp) = ___ milliliters (mL)?
  2. 1 killogram (kg) = ___ pounds (lbs)?
  3. 1 inch (in) = ___ centimeters (cm)?
  4. 65 inches = ___ feet (ft), ___ inches (in)?

Section 1 Answers

  1. 5 mL
  2. 2.2 lbs
  3. 2.54 cm
  4. 5 ft, 5 in

Section 2 Questions (these may require a basic calculator!)

  1. How many mL of Potassium Phosphate 3 mmol/mL stock solution will you need to prepare a 15 mmol IV bag? (mmol = millimole)
  2. If the same stock solution contains 4.4 mEq/mL of potassium, how much potassium will be in the 15 mmol IV bag? (mEq = milliequivalent)
  3. You need to prepare a 360 mg IV bag of gentamicin. You have a 800 mg/20mL stock vial. How many mL should you add to the bag of normal saline?

Section 2 Answers

  1. 5 mL of potassium phosphate solution
  2. 22 mEq of potassium
  3. 9 mL of gentamicin

Section 3 Questions (more quick knowledge)

  1. 1 Tablespoon (Tbsp) = ___ tsp?
  2. 3 tsp = ___ mL?
  3. 1 ounce (oz) = ___ mL?
  4. 240 mL = ___ oz?

Section 3 Answers

  1. 3 tsp
  2. 15 mL
  3. 30 mL
  4. 8 oz

The questions above are common conversions I use in my day-to-day practice as a hospital pharmacist. Did I miss some that you frequently use or think every pharmacist should know? Drop them in the comment section below! I will repost our favorites on our Instagram page!