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
250 mg/5 mLV = ? mL

The prescription is 375 mg. The stock solution contains 250 mg in 5 mL. What volume V do you draw up?

375 mg250 mg/5 mL
V = mL
2.Easy
0123455 mL

The prescription is 92.5 mg. The stock solution contains 25 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

92.5 mg25 mg/1 mL
V = mL
3.Medium
60 kg2 mg/kgD = ? mg

A patient weighs 60 kg and is prescribed 2 mg/kg as a single dose. Find the dose D in mg.

60 kg2 mg/kg
D = mg
4.Medium
116 kgBSA = 2.07 m²20 mg/m²D = ? mg

A patient weighing 116 kg has a body surface area of 2.07 m². The prescription is 20 mg/m². Find the dose D in mg.

116 kgBSA = 2.07 m²20 mg/m²
D = mg
5.Hard
40k units500 mL? mL/h1000 units/h

An infusion contains 40000 units of a drug in 500 mL. The prescription is 1000 units per hour. At what rate R do you set the pump, in mL/h?

40000 units/500 mL1000 units/h
R = mL/h
6.Hard
10%stockwater = ? mL

You must prepare 250 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 = 250 mL
W = mL

Answer key

  1. 1. V = 7.5 mL
  2. 2. V = 3.7 mL
  3. 3. D = 120 mg
  4. 4. D = 41.4 mg
  5. 5. R = 12.5 mL/h
  6. 6. W = 200 mL

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