Question

​The nurse must prepare the correct intravenous (IV) solution before administration. The prescription reads for the patient to receive D5½ NS with 40 mEq KCl/L at 125 mL/hr. The nurse must add KCl to the IV because no premixed solutions are available. The unit medication supply has a stock of KCl 3 mEq/mL in multidose vials. What amount of KCl should be added to a liter of D5½ NS to obtain the correct solution? Give your answer using one decimal place. ___ mL​​​

Answer 1

Answer ;

Here the dosage order is, a liter of D5 1/2 NS with 40 mEq KCL / L

The available amount of KCL is 3 mEq / ml.

From that, 1 ml of KCL contain 3 mEq,
here the needed amount is 40 mEq , hence 40 / 3 = 13.3 ml

Therefor 13.3 ml of KCL should need to be diluted to get the desired amount of concentration.