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 125 mg. The stock solution contains 250 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

125 mg250 mg/5 mL
V = mL
2.Easy
? × 0.125 mg

The prescription is 250 micrograms (mcg) of a drug. The tablets contain 0.125 mg each. How many tablets n do you give?

250 mcg0.125 mg/tablet
n = tablets
3.Medium
20 kgBSA = 0.94 m²75 mg/m²D = ? mg

A patient weighing 20 kg has a body surface area of 0.94 m². The prescription is 75 mg/m². Find the dose D in mg.

20 kgBSA = 0.94 m²75 mg/m²
D = mg
4.Medium
024681010 mL

A child weighing 24 kg is prescribed 2.5 mg/kg of a drug. The stock solution contains 25 mg/mL. Draw up the dose: what volume V do you give?

24 kg2.5 mg/kg25 mg/mL
V = mL
5.Hard
50%stockwater = ? mL

You must prepare 500 mL of a 0.5% (w/v) solution from a 50% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 50%C₂ = 0.5%V₂ = 500 mL
W = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 215 micrograms. The ampoule contains 0.5 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

215 mcg0.5 mg/mL
V = mL

Answer key

  1. 1. V = 2.5 mL
  2. 2. n = 2 tablets
  3. 3. D = 70.5 mg
  4. 4. V = 2.4 mL
  5. 5. W = 495 mL
  6. 6. V = 0.43 mL

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