To determine how much of the solution should be given, we can set up a proportion based on the information provided.

We know that:

• 85 mg of medication is contained in 5 mL of solution.
• The patient needs 230 mg of medication.

Let $x$ be the amount of solution (in mL) required to provide 230 mg of medication. The proportion can be set up as follows:

$\frac{85 \, \text{mg}}{5 \, \text{mL}} = \frac{230 \, \text{mg}}{x \, \text{mL}}$

Now solve for $x$:

$x = \frac{230 \, \text{mg} \times 5 \, \text{mL}}{85 \, \text{mg}} = \frac{1150}{85} = 13.5 \, \text{mL}$

So, 13.5 mL of the concentrated drug solution should be given.

Would you like more details or have any questions? Here are some related questions:

1. What is the process for calculating drug dosages for different concentrations?
2. How would the amount of solution change if the patient needed a smaller dosage, such as 150 mg?
3. What are common rounding rules for medical dosages?
4. How does dilution affect the amount of solution required for a certain dosage?
5. How would the calculation change if the concentration of the solution was different?

Tip: When working with proportions, always double-check your units to make sure they are consistent.