Dosage calculations, until they stop being scary
Problems are generated fresh every time, so there is nothing to memorise and no way to run out. Write the units at every step. That single habit prevents most of the errors this section is designed to catch.
Unit conversion
Streak 0 · 0 attemptedMoving between metric units, and between pounds and kilograms.
Convert 0.5 g to mg.
mg
Give a whole number.
Formula
1 g = 1000 mg · 1 mg = 1000 mcg · 1 L = 1000 mL · 1 kg = 2.2 lb
Where marks get lost
Moving the decimal the wrong direction between mg and mcg.