For a patient prescribed Sodium polystyrene sulfonate for hyperkalemia, how many mL should the nurse administer if the dosage is 15 g and the suspension concentration is 1.25 g/5 mL?

To determine the volume of suspension to administer for a dosage of 15 g of Sodium polystyrene sulfonate, you can use the provided concentration of the suspension, which is 1.25 g per 5 mL.

First, calculate how many grams are in each mL of the suspension by dividing the grams by the total volume:

• 1.25 g / 5 mL = 0.25 g/mL.

Next, since the prescribed dosage is 15 g, you can calculate the total volume needed by dividing the dosage by the concentration per mL:

• 15 g / 0.25 g/mL = 60 mL.

This calculation shows that to achieve the desired 15 g dosage, you need to administer 60 mL of the Sodium polystyrene sulfonate suspension. This matches the reasoning and confirms that the correct answer is the volume of 60 mL.