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
? × 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
3.Medium
024681010 mL

A child weighing 9 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?

9 kg15 mg/kg25 mg/mL
V = mL
4.Medium
70 kg15 mg/kg/day2× per dayD = ? mg

A patient weighs 70 kg. The prescribed dose is 15 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

70 kg15 mg/kg/day2× per day
D = mg
5.Hard
43 kg127 cmBSA = √(h·w/3600)175 mg/m²D = ? mg

A patient is 127 cm tall and weighs 43 kg. The prescription is 175 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

127 cm43 kg175 mg/m²
D = mg
6.Hard
250 mg/5 mLV = ? mL

A child weighing 8 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?

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

Answer key

  1. 1. n = 1 tablets
  2. 2. n = 3 tablets
  3. 3. V = 5.4 mL
  4. 4. D = 525 mg
  5. 5. D = 215.5 mg
  6. 6. V = 1.6 mL

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