Dosage calculations worksheet with answers

Free printable Dosage 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
? × 500 mcg

The prescription is 0.5 mg of a drug. The tablets contain 500 micrograms (mcg) each. How many tablets n do you give?

0.5 mg500 mcg/tablet
n = tablets
2.Easy
0123455 mL

The prescription is 47.5 mg. The stock solution contains 25 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

47.5 mg25 mg/1 mL
V = mL
3.Medium
024681010 mL

A child weighing 20 kg is prescribed 3 mg/kg of a drug. The stock solution contains 10 mg/mL. Draw up the dose: what volume V do you give?

20 kg3 mg/kg10 mg/mL
V = mL
4.Medium
2 g+ 9.2 mLV = ? mL

A vial contains 2 g of powder. The label says: add 9.2 mL of water for injection to give a total volume of 10 mL. The prescription is 80 mg. What volume V of the reconstituted solution do you give?

2 g+ 9.2 mL → 10 mL80 mg
V = mL
5.Hard
100 mg/5 mLV = ? mL

A child weighing 18 kg is prescribed 15 mg/kg per dose of an oral suspension that contains 100 mg in 5 mL. What volume V do you give?

18 kg15 mg/kg100 mg/5 mL
V = mL
6.Hard
250 mg/5 mLV = ? mL

A child weighing 18 kg is prescribed 10 mg/kg per dose of an oral suspension that contains 250 mg in 5 mL. What volume V do you give?

18 kg10 mg/kg250 mg/5 mL
V = mL

Answer key

  1. 1. n = 1 tablets
  2. 2. V = 1.9 mL
  3. 3. V = 6 mL
  4. 4. V = 0.4 mL
  5. 5. V = 13.5 mL
  6. 6. V = 3.6 mL

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