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
80 mg/2 mLV = ? mL

The prescription is 40 mg. The stock solution contains 80 mg in 2 mL. What volume V do you draw up?

40 mg80 mg/2 mL
V = mL
2.Easy
0123455 mL

The prescription is 85 mg. The stock solution contains 100 mg in 2 mL. Draw up the dose in the syringe: what volume V do you give?

85 mg100 mg/2 mL
V = mL
3.Medium
024681010 mL

A child weighing 8 kg is prescribed 10 mg/kg of a drug. The stock solution contains 20 mg/mL. Draw up the dose: what volume V do you give?

8 kg10 mg/kg20 mg/mL
V = mL
4.Medium
98 kgBSA = 1.95 m²175 mg/m²D = ? mg

A patient weighing 98 kg has a body surface area of 1.95 m². The prescription is 175 mg/m². Find the dose D in mg.

98 kgBSA = 1.95 m²175 mg/m²
D = mg
5.Hard
25%stockV₁ = ? mL

You must prepare 1000 mL of a 0.5% (w/v) solution from a 25% (w/v) stock solution. What volume of stock V₁ do you need?

C₁ = 25%C₂ = 0.5%V₂ = 1000 mL
V₁ = mL
6.Hard
200 mg/5 mLV = ? mL

A child weighing 12 kg is prescribed 5 mg/kg per dose of an oral suspension that contains 200 mg in 5 mL. What volume V do you give?

12 kg5 mg/kg200 mg/5 mL
V = mL

Answer key

  1. 1. V = 1 mL
  2. 2. V = 1.7 mL
  3. 3. V = 4 mL
  4. 4. D = 341.3 mg
  5. 5. V₁ = 20 mL
  6. 6. V = 1.5 mL

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