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
0123455 mL

The prescription is 195 mg. The stock solution contains 250 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

195 mg250 mg/5 mL
V = mL
2.Easy
50 mcg/1 mLV = ? mL

The prescription is 0.125 mg by injection. The ampoule is labelled 50 micrograms per mL. What volume V do you draw up?

0.125 mg50 mcg/mL
V = mL
3.Medium
024681010 mL

A child weighing 13 kg is prescribed 15 mg/kg of a drug. The stock solution contains 25 mg/mL. Draw up the dose: what volume V do you give?

13 kg15 mg/kg25 mg/mL
V = mL
4.Medium
2 g+ 7.4 mLV = ? mL

A vial contains 2 g of powder. The label says: add 7.4 mL of water for injection to give a total volume of 8 mL. The prescription is 100 mg. What volume V of the reconstituted solution do you give?

2 g+ 7.4 mL → 8 mL100 mg
V = mL
5.Hard
50k units500 mL? mL/h1200 units/h

An infusion contains 50000 units of a drug in 500 mL. The prescription is 1200 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/500 mL1200 units/h
R = mL/h
6.Hard
100 mg/5 mLV = ? mL

A child weighing 10 kg is prescribed 5 mg/kg per dose of an oral suspension that contains 100 mg in 5 mL. What volume V do you give?

10 kg5 mg/kg100 mg/5 mL
V = mL

Answer key

  1. 1. V = 3.9 mL
  2. 2. V = 2.5 mL
  3. 3. V = 7.8 mL
  4. 4. V = 0.4 mL
  5. 5. R = 12 mL/h
  6. 6. V = 2.5 mL

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