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
? × 20 mg

A patient is prescribed 60 mg of a drug. The tablets on the ward contain 20 mg each. How many tablets n do you give?

60 mg20 mg/tablet
n = tablets
2.Easy
0123455 mL

The prescription is 80 mg. The stock solution contains 40 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

80 mg40 mg/1 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 26 kg is prescribed 7.5 mg/kg of a drug. The stock solution contains 25 mg/mL. Draw up the dose: what volume V do you give?

26 kg7.5 mg/kg25 mg/mL
V = mL
5.Hard
40 mg/1 mLV = ? mL

A child weighing 14 kg is prescribed 10 mg/kg per dose of an oral suspension that contains 40 mg in 1 mL. What volume V do you give?

14 kg10 mg/kg40 mg/1 mL
V = mL
6.Hard
57 kg153 cmBSA = √(h·w/3600)25 mg/m²D = ? mg

A patient is 153 cm tall and weighs 57 kg. The prescription is 25 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

153 cm57 kg25 mg/m²
D = mg

Answer key

  1. 1. n = 3 tablets
  2. 2. V = 2 mL
  3. 3. D = 466.7 mg
  4. 4. V = 7.8 mL
  5. 5. V = 3.5 mL
  6. 6. D = 38.91 mg

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