The nurse receives an order for Medication S 4 mg intravenously. The medication label states Medication \( \mathrm{S} 2.5 \mathrm{mg} / \mathrm{ml} \). How many mL should the nurse prepare to administer the correct dose?

To calculate the amount of Medication S that the nurse should prepare, we divide the desired dose (4 mg) by the concentration of the medication (2.5 mg/mL). So, \( \frac{4 \text{ mg}}{2.5 \text{ mg/mL}} = 1.6 \text{ mL} \). Therefore, the nurse should prepare 1.6 mL of Medication S to administer the correct dose of 4 mg. To ensure patient safety, always double-check medication calculations and labels, especially in high-stress environments like hospitals. It’s a good practice to have a second nurse confirm dosages when administering medications, particularly in IV situations, to minimize the risk of errors.