Grade 9 Math: Reconstitution Calculation
This worksheet focuses on reconstitution calculations, covering various scenarios involving concentration, volume, and dosage for Grade 9 math students.
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Reconstitution Calculation Worksheet
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Read each question carefully and show all your work. Round your answers to two decimal places where appropriate.
1. A medication comes in a vial containing 250 mg of powder. If you reconstitute it with 5 mL of sterile water, what is the concentration of the solution in mg/mL?
2. You need to administer 150 mg of a drug. The available reconstituted solution has a concentration of 40 mg/mL. How many milliliters (mL) of the solution should you administer?
1. To find the concentration of a reconstituted solution, you divide the amount of drug (e.g., mg) by the total .
2. If a powder contains 500 mg and is reconstituted to a final volume of 10 mL, the concentration is mg/mL.
1. A drug vial contains 1 gram of powder. It is reconstituted with 20 mL of diluent. What is the concentration in mg/mL?
5 mg/mL
50 mg/mL
0.5 mg/mL
20 mg/mL
2. You need to prepare a solution with a concentration of 25 mg/mL. If you have 200 mg of powder, what final volume should the solution be?
5 mL
8 mL
10 mL
20 mL
1. Reconstitution always involves dissolving a solid into a liquid.
True
False
2. Increasing the volume of diluent will increase the concentration of the reconstituted solution.
True
False
1. A patient requires a 300 mg dose of a medication. The medication comes in a 500 mg powder vial. The instructions state to reconstitute with 8 mL of sterile water for injection. How many mL of the reconstituted solution should be administered to the patient?