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
? × 50 mg

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

50 mg50 mg/tablet
n = tablets
2.Easy
50 mcg/1 mLV = ? mL

The prescription is 0.1 mg by injection. The ampoule is labelled 50 micrograms per mL. What volume V do you draw up?

0.1 mg50 mcg/mL
V = mL
3.Medium
70 kg5 mg/kg/day4× per dayD = ? mg

A patient weighs 70 kg. The prescribed dose is 5 mg/kg per day, given in 4 equal doses. How many milligrams D are given per dose?

70 kg5 mg/kg/day4× per day
D = mg
4.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
5.Hard
40 mg/1 mLV = ? mL

A child weighing 12 kg is prescribed 5 mg/kg per dose of an oral suspension that contains 40 mg in 1 mL. What volume V do you give?

12 kg5 mg/kg40 mg/1 mL
V = mL
6.Hard
50k units1000 mL? mL/h1000 units/h

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

50000 units/1000 mL1000 units/h
R = mL/h

Answer key

  1. 1. n = 1 tablets
  2. 2. V = 2 mL
  3. 3. D = 87.5 mg
  4. 4. D = 120 mg
  5. 5. V = 1.5 mL
  6. 6. R = 20 mL/h

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