Question

order: kcl (potassium chloride) elixir 10 meq po now
supply: the label of the bottle reads kcl 40 meq/10 ml
how many mls will you give? ______________

Explanation:

Step1: Determine the concentration

The concentration of the available KCL is $\frac{40\ meq}{10\ mL}=4\ meq/mL$.

Step2: Calculate the volume

We need to give 10 meq. Using the formula $V=\frac{\text{Desired dose}}{\text{Concentration}}$, so $V = \frac{10\ meq}{4\ meq/mL}=2.5\ mL$.

Answer:

$2.5$