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

187.5 mg250 mg/5 mL
V = mL
2.Easy
? × 500 mg

A patient is prescribed 750 mg of a drug. The tablets on the ward contain 500 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

750 mg500 mg/tablet
n = tablets
3.Medium
80 kg5 mg/kgD = ? mg

A patient weighs 80 kg and is prescribed 5 mg/kg as a single dose. Find the dose D in mg.

80 kg5 mg/kg
D = mg
4.Medium
1:1000ampouleV = ? mL

An ampoule of epinephrine (adrenaline) is labelled 1:1000 (1 mg/mL). The prescription is 0.5 mg IM for anaphylaxis. What volume V do you draw up?

1:10000.5 mg
V = mL
5.Hard
66 kg180 cmBSA = √(h·w/3600)100 mg/m²D = ? mg

A patient is 180 cm tall and weighs 66 kg. The prescription is 100 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

180 cm66 kg100 mg/m²
D = mg
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 2300 units of a drug that comes as 10000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

2300 units10000 units/mL
V = mL

Answer key

  1. 1. V = 3.75 mL
  2. 2. n = 1.5 tablets
  3. 3. D = 400 mg
  4. 4. V = 0.5 mL
  5. 5. D = 181.7 mg
  6. 6. V = 0.23 mL

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