Equation: total volume of TPN/Stock solution % x Desired Solution % = ml of Desired Solution

1.    The pharmacy has a stock solution of Dextrose 70%. How many milliliters of Dextrose 70% should be added to the TPN?

2.    The pharmacy has a stock solution of Aminosyn 10%. How many milliliters of Aminosyn should be added to the TPN?

3.    The pharmacy has a stock solution of Liposyn 20%. How many milliliters of Liposyn should be added to the TPN?

4.    The pharmacy has a stock solution of sodium chloride, 4 mEq/ml. How many milliliters of sodium chloride should be added to the TPN?

5.    The pharmacy has a stock solution of potassium chloride, 2 mEq/ml. How many milliliters of potassium chloride should be added to the TPN?

6.The pharmacy has a stock solution of potassium phosphate, 3 mM/ml. How many milliliters of potassium phosphate should be added to the TPN?

7.    Which components listed in the TPN order are additives?

8.    What is the total volume of additives? 

9.    What does the term, “QS” mean on the TPN order?

10.How many milliliters of sterile water should be added to the TPN?