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
40 mg/1 mLV = ? mL

The prescription is 24 mg. The stock solution contains 40 mg in 1 mL. What volume V do you draw up?

24 mg40 mg/1 mL
V = mL
2.Easy
0123455 mL

The prescription is 24 mg. The stock solution contains 200 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

24 mg200 mg/5 mL
V = mL
3.Medium
1 g+ 9.6 mLV = ? mL

A vial contains 1 g of powder. The label says: add 9.6 mL of water for injection to give a total volume of 10 mL. The prescription is 100 mg. What volume V of the reconstituted solution do you give?

1 g+ 9.6 mL → 10 mL100 mg
V = mL
4.Medium
70 kg10 mg/kgD = ? mg

A patient weighs 70 kg and is prescribed 10 mg/kg as a single dose. Find the dose D in mg.

70 kg10 mg/kg
D = mg
5.Hard
50%stockwater = ? mL

You must prepare 500 mL of a 5% (w/v) solution from a 50% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 50%C₂ = 5%V₂ = 500 mL
W = mL
6.Hard
10%stockwater = ? mL

You must prepare 200 mL of a 2% (w/v) solution from a 10% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 10%C₂ = 2%V₂ = 200 mL
W = mL

Answer key

  1. 1. V = 0.6 mL
  2. 2. V = 0.6 mL
  3. 3. V = 1 mL
  4. 4. D = 700 mg
  5. 5. W = 450 mL
  6. 6. W = 160 mL

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