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
100 mg/1 mLV = ? mL

The prescription is 1 g of a drug intravenously. The reconstituted vial contains 100 mg per mL. What volume V do you draw up?

1 g100 mg/mL
V = mL
2.Easy
? × 25 mg

A patient is prescribed 12.5 mg of a drug 4 times a day for 14 days. The tablets contain 25 mg each. How many tablets N are needed for the whole course? The tablets are scored, so they can be broken in half.

12.5 mg4× per day14 days25 mg/tablet
N = tablets
3.Medium
024681010 mL

A child weighing 12 kg is prescribed 20 mg/kg of a drug. The stock solution contains 40 mg/mL. Draw up the dose: what volume V do you give?

12 kg20 mg/kg40 mg/mL
V = mL
4.Medium
024681010 mL

A child weighing 17 kg is prescribed 2 mg/kg of a drug. The stock solution contains 10 mg/mL. Draw up the dose: what volume V do you give?

17 kg2 mg/kg10 mg/mL
V = mL
5.Hard
38 kg152 cmBSA = √(h·w/3600)175 mg/m²D = ? mg

A patient is 152 cm tall and weighs 38 kg. The prescription is 175 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

152 cm38 kg175 mg/m²
D = mg
6.Hard
50k units250 mL? mL/h1200 units/h

An infusion contains 50000 units of a drug in 250 mL. The prescription is 1200 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/250 mL1200 units/h
R = mL/h

Answer key

  1. 1. V = 10 mL
  2. 2. N = 28 tablets
  3. 3. V = 6 mL
  4. 4. V = 3.4 mL
  5. 5. D = 221.7 mg
  6. 6. R = 6 mL/h

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