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

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

The prescription is 11 mg. The stock solution contains 10 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

11 mg10 mg/1 mL
V = mL
3.Medium
90 kg7.5 mg/kgD = ? mg

A patient weighs 90 kg and is prescribed 7.5 mg/kg as a single dose. Find the dose D in mg.

90 kg7.5 mg/kg
D = mg
4.Medium
500 mg+ 4.6 mLV = ? mL

A vial contains 500 mg of powder. The label says: add 4.6 mL of water for injection to give a total volume of 5 mL. The prescription is 200 mg. What volume V of the reconstituted solution do you give?

500 mg+ 4.6 mL → 5 mL200 mg
V = mL
5.Hard
250 mg/5 mLV = ? mL

A child weighing 8 kg is prescribed 15 mg/kg per dose of an oral suspension that contains 250 mg in 5 mL. What volume V do you give?

8 kg15 mg/kg250 mg/5 mL
V = mL
6.Hard
10%stockV₁ = ? mL

You must prepare 250 mL of a 5% (w/v) solution from a 10% (w/v) stock solution. What volume of stock V₁ do you need?

C₁ = 10%C₂ = 5%V₂ = 250 mL
V₁ = mL

Answer key

  1. 1. V = 4.3 mL
  2. 2. V = 1.1 mL
  3. 3. D = 675 mg
  4. 4. V = 2 mL
  5. 5. V = 2.4 mL
  6. 6. V₁ = 125 mL

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