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 37.5 mg. The stock solution contains 25 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

37.5 mg25 mg/1 mL
V = mL
2.Easy
125 mg/5 mLV = ? mL

The prescription is 62.5 mg. The stock solution contains 125 mg in 5 mL. What volume V do you draw up?

62.5 mg125 mg/5 mL
V = mL
3.Medium
60 kg7.5 mg/kg/day2× per dayD = ? mg

A patient weighs 60 kg. The prescribed dose is 7.5 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

60 kg7.5 mg/kg/day2× per day
D = mg
4.Medium
024681010 mL

A child weighing 26 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?

26 kg10 mg/kg50 mg/mL
V = mL
5.Hard
20%stockwater = ? mL

You must prepare 1000 mL of a 0.5% (w/v) solution from a 20% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 20%C₂ = 0.5%V₂ = 1000 mL
W = mL
6.Hard
70 kg173 cmBSA = √(h·w/3600)60 mg/m²D = ? mg

A patient is 173 cm tall and weighs 70 kg. The prescription is 60 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

173 cm70 kg60 mg/m²
D = mg

Answer key

  1. 1. V = 1.5 mL
  2. 2. V = 2.5 mL
  3. 3. D = 225 mg
  4. 4. V = 5.2 mL
  5. 5. W = 975 mL
  6. 6. D = 110 mg

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