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

50 mg100 mg/2 mL
V = mL
2.Easy
0123455 mL

The prescription is 80 mg. The stock solution contains 50 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

80 mg50 mg/1 mL
V = mL
3.Medium
22 kg10 mg/kgD = ? mg

A patient weighs 22 kg and is prescribed 10 mg/kg as a single dose. Find the dose D in mg.

22 kg10 mg/kg
D = mg
4.Medium
024681010 mL

A child weighing 17 kg is prescribed 5 mg/kg of a drug. The stock solution contains 25 mg/mL. Draw up the dose: what volume V do you give?

17 kg5 mg/kg25 mg/mL
V = mL
5.Hard
25%stockwater = ? mL

You must prepare 200 mL of a 5% (w/v) solution from a 25% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 25%C₂ = 5%V₂ = 200 mL
W = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 2150 units of a drug that comes as 5000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

2150 units5000 units/mL
V = mL

Answer key

  1. 1. V = 1 mL
  2. 2. V = 1.6 mL
  3. 3. D = 220 mg
  4. 4. V = 3.4 mL
  5. 5. W = 160 mL
  6. 6. V = 0.43 mL

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