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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1.Easy
? × 50 mg

A patient is prescribed 125 mg of a drug. The tablets on the ward contain 50 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

125 mg50 mg/tablet
n = tablets
2.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
3.Medium
12 kg30 mg/kg/day3× per dayD = ? mg

A patient weighs 12 kg. The prescribed dose is 30 mg/kg per day, given in 3 equal doses. How many milligrams D are given per dose?

12 kg30 mg/kg/day3× per day
D = mg
4.Medium
30 kg25 mg/kgD = ? mg

A patient weighs 30 kg and is prescribed 25 mg/kg as a single dose. Find the dose D in mg.

30 kg25 mg/kg
D = mg
5.Hard
50k units500 mL? mL/h1250 units/h

An infusion contains 50000 units of a drug in 500 mL. The prescription is 1250 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/500 mL1250 units/h
R = mL/h
6.Hard
40 mg/1 mLV = ? mL

A child weighing 14 kg is prescribed 15 mg/kg per dose of an oral suspension that contains 40 mg in 1 mL. What volume V do you give? Round to one decimal place.

14 kg15 mg/kg40 mg/1 mL
V = mL

Answer key

  1. 1. n = 2.5 tablets
  2. 2. n = 1 tablets
  3. 3. D = 120 mg
  4. 4. D = 750 mg
  5. 5. R = 12.5 mL/h
  6. 6. V = 5.3 mL

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