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 mcg

The prescription is 0.375 mg of a drug. The tablets contain 250 micrograms (mcg) each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

0.375 mg250 mcg/tablet
n = tablets
2.Easy
100 mg/5 mLV = ? mL

The prescription is 60 mg. The stock solution contains 100 mg in 5 mL. What volume V do you draw up?

60 mg100 mg/5 mL
V = mL
3.Medium
1:10 000ampouleV = ? mL

A prefilled syringe of epinephrine (adrenaline) is labelled 1:10 000 (0.1 mg/mL). The prescription is 1 mg IV in cardiac arrest. What volume V do you give?

1:10 0001 mg
V = mL
4.Medium
024681010 mL

A child weighing 20 kg is prescribed 2 mg/kg of a drug. The stock solution contains 40 mg/mL. Draw up the dose: what volume V do you give?

20 kg2 mg/kg40 mg/mL
V = mL
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 1400 micrograms. The ampoule contains 4 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

1400 mcg4 mg/mL
V = mL
6.Hard
35 kg142 cmBSA = √(h·w/3600)135 mg/m²D = ? mg

A patient is 142 cm tall and weighs 35 kg. The prescription is 135 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

142 cm35 kg135 mg/m²
D = mg

Answer key

  1. 1. n = 1.5 tablets
  2. 2. V = 3 mL
  3. 3. V = 10 mL
  4. 4. V = 1 mL
  5. 5. V = 0.35 mL
  6. 6. D = 158.6 mg

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