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
400 mcg/1 mLV = ? mL

The prescription is 0.6 mg by injection. The ampoule is labelled 400 micrograms per mL. What volume V do you draw up?

0.6 mg400 mcg/mL
V = mL
2.Easy
100 mg/5 mLV = ? mL

The prescription is 50 mg. The stock solution contains 100 mg in 5 mL. What volume V do you draw up?

50 mg100 mg/5 mL
V = mL
3.Medium
70 kg20 mg/kg/day3× per dayD = ? mg

A patient weighs 70 kg. The prescribed dose is 20 mg/kg per day, given in 3 equal doses. How many milligrams D are given per dose?

70 kg20 mg/kg/day3× per day
D = mg
4.Medium
024681010 mL

A child weighing 33 kg is prescribed 10 mg/kg of a drug. The stock solution contains 50 mg/mL. Draw up the dose: what volume V do you give?

33 kg10 mg/kg50 mg/mL
V = mL
5.Hard
10%stockV₁ = ? mL

You must prepare 250 mL of a 2.5% (w/v) solution from a 10% (w/v) stock solution. What volume of stock V₁ do you need?

C₁ = 10%C₂ = 2.5%V₂ = 250 mL
V₁ = mL
6.Hard
40 mg/1 mLV = ? mL

A child weighing 16 kg is prescribed 15 mg/kg per dose of an oral suspension that contains 40 mg in 1 mL. What volume V do you give?

16 kg15 mg/kg40 mg/1 mL
V = mL

Answer key

  1. 1. V = 1.5 mL
  2. 2. V = 2.5 mL
  3. 3. D = 466.7 mg
  4. 4. V = 6.6 mL
  5. 5. V₁ = 62.5 mL
  6. 6. V = 6 mL

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