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
? × 25 mg

A patient is prescribed 50 mg of a drug. The tablets on the ward contain 25 mg each. How many tablets n do you give?

50 mg25 mg/tablet
n = tablets
2.Easy
40 mg/1 mLV = ? mL

The prescription is 48 mg. The stock solution contains 40 mg in 1 mL. What volume V do you draw up?

48 mg40 mg/1 mL
V = mL
3.Medium
024681010 mL

A child weighing 14 kg is prescribed 4 mg/kg of a drug. The stock solution contains 20 mg/mL. Draw up the dose: what volume V do you give?

14 kg4 mg/kg20 mg/mL
V = mL
4.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
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 6600 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?

6600 units10000 units/mL
V = mL
6.Hard
50k units1000 mL? mL/h800 units/h

An infusion contains 50000 units of a drug in 1000 mL. The prescription is 800 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/1000 mL800 units/h
R = mL/h

Answer key

  1. 1. n = 2 tablets
  2. 2. V = 1.2 mL
  3. 3. V = 2.8 mL
  4. 4. V = 10 mL
  5. 5. V = 0.66 mL
  6. 6. R = 16 mL/h

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