To determine how many milliliters to give the patient, we can set up a proportion based on the label information.

We know that:

• The patient needs 60 mEq.
• The medication is 30 mEq per 20 mL.

Now, we set up a proportion:

$\frac{30 \, \text{mEq}}{20 \, \text{mL}} = \frac{60 \, \text{mEq}}{x \, \text{mL}}$

Solve for $x$:

$x = \frac{60 \, \text{mEq} \times 20 \, \text{mL}}{30 \, \text{mEq}} = 40 \, \text{mL}$

Therefore, you should give 40 mL to the patient.

Would you like a more detailed explanation or have any questions?

Here are 5 related questions:

1. What if the patient needed 45 mEq instead? How much should be administered?
2. How would the calculation change if the concentration was 25 mEq per 15 mL?
3. How can you double-check your answer using dimensional analysis?
4. What happens if the medication concentration is expressed in mg instead of mEq?
5. How would you convert milliliters to teaspoons if a patient requires a home dose?

Tip: Always check units carefully to ensure you are administering the correct dosage.