Reconstitution Calculation Worksheet

Reconstitution Calculation Worksheet

Read each question carefully and show all your work. Use appropriate units for your answers. Round to two decimal places where necessary.

1. A medication is available in a powdered form. The label states that adding 5 mL of sterile water will yield a solution with a concentration of 250 mg/5 mL. If a patient requires a dose of 375 mg, how many milliliters of the reconstituted solution should be administered?

2. You have a stock solution of 10% dextrose. To prepare 500 mL of a 2.5% dextrose solution, you would need to add   mL of the 10% stock solution to   mL of diluent.

3. A vial contains 1 gram of a drug. The directions state to reconstitute with 4 mL of diluent to achieve a concentration of 200 mg/mL. What is the total volume of the reconstituted solution?

4. When reconstituting a medication, the amount of diluent added always equals the final volume of the solution.

5. A physician orders 15 mg of a drug for a patient. The drug is supplied in a vial containing 20 mg of powdered medication. The manufacturer's instructions state to reconstitute the vial with 5 mL of sterile water, which will result in a displacement volume of 0.5 mL. Calculate the concentration of the reconstituted solution and the volume to administer to the patient.