Pharmacy calculations worksheet with answers

Free printable Pharmacy calculations worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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Name: ____________________ Date: ____________

1.Easy

A solution is 0.5% w/v. You need 22.5 mg of the drug. Draw up the volume in the syringe: what volume V is that?

0.5% w/v22.5 mg

V = mL

2.Easy

A solution is 2% w/v. You need 64 mg of the drug. Draw up the volume in the syringe: what volume V is that?

2% w/v64 mg

V = mL

3.Medium

A solution has a ratio strength of 1:1000. You need 0.55 mg. Draw up the volume in the 1 mL syringe: what volume V is that?

1:10000.55 mg

V = mL

4.Medium

A solution has a ratio strength of 1:1000. You need 0.95 mg. Draw up the volume in the 1 mL syringe: what volume V is that?

1:10000.95 mg

V = mL

5.Hard

A vial holds 500 mg of powder. You add 4.6 mL of diluent, and the powder adds 0.4 mL of volume. The prescription is 370 mg. Draw up the dose: what volume V do you give?

500 mg4.6 mL + 0.4 mL370 mg

V = mL

6.Hard

A vial holds 250 mg of powder. You add 9.8 mL of diluent, and the powder adds 0.2 mL of volume. The prescription is 95 mg. Draw up the dose: what volume V do you give?

250 mg9.8 mL + 0.2 mL95 mg

V = mL

Answer key

1. V = 4.5 mL
2. V = 3.2 mL
3. V = 0.55 mL
4. V = 0.95 mL
5. V = 3.7 mL
6. V = 3.8 mL

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