You need to inject Magnesium Sulfate 10 mEq into an IV bag. If you have it in a concentration of 4 mEq/mL, how much do you need to inject?

To determine how much Magnesium Sulfate you need to inject into the IV bag, you start with the total amount of the drug required, which is 10 mEq, and the concentration of the available solution, which is 4 mEq/mL.

The calculation involves dividing the total amount needed by the concentration of the solution:

10 mEq (required) ÷ 4 mEq/mL (concentration) = 2.5 mL.

This calculation means that to achieve a total of 10 mEq, you will need to administer 2.5 mL of the solution, as each milliliter contains 4 mEq of Magnesium Sulfate. This answer is consistent across various contexts in pharmacy practice, where appropriately calculating dosages based on concentration is essential for safe and effective medication administration. The precise understanding of how to manipulate units and perform the calculation is a crucial skill for pharmacy technicians.