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.
Intake and output
Streak 0 · 0 attemptedTotalling fluid balance across a shift, including solids that count as fluid.
Over one shift a client took 120 mL of juice, 100 mL of broth, and 200 mL of ice chips, and received 500 mL of IV fluid. Output was 650 mL of urine and 125 mL from a wound drain. What is the fluid balance?
mL
Give a whole number. A negative value means a net loss.
Formula
Balance = Total intake − Total output
Where marks get lost
Forgetting that ice chips count as roughly half their volume, and gelatin counts as fluid.