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.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy
? × 20 mg

A patient is prescribed 50 mg of a drug. The tablets on the ward contain 20 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

50 mg20 mg/tablet
n = tablets
2.Easy
? × 250 mg

A patient is prescribed 625 mg of a drug. The tablets on the ward contain 250 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

625 mg250 mg/tablet
n = tablets
3.Medium
90 kg30 mg/kg/day3× per dayD = ? mg

A patient weighs 90 kg. The prescribed dose is 30 mg/kg per day, given in 3 equal doses. How many milligrams D are given per dose?

90 kg30 mg/kg/day3× per day
D = mg
4.Medium
63 kgBSA = 1.52 m²375 mg/m²D = ? mg

A patient weighing 63 kg has a body surface area of 1.52 m². The prescription is 375 mg/m². Find the dose D in mg.

63 kgBSA = 1.52 m²375 mg/m²
D = mg
5.Hard
50k units1000 mL? mL/h2000 units/h

An infusion contains 50000 units of a drug in 1000 mL. The prescription is 2000 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/1000 mL2000 units/h
R = mL/h
6.Hard
98 kg189 cmBSA = √(h·w/3600)135 mg/m²D = ? mg

A patient is 189 cm tall and weighs 98 kg. The prescription is 135 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

189 cm98 kg135 mg/m²
D = mg

Answer key

  1. 1. n = 2.5 tablets
  2. 2. n = 2.5 tablets
  3. 3. D = 900 mg
  4. 4. D = 570 mg
  5. 5. R = 40 mL/h
  6. 6. D = 306.2 mg

Full step-by-step solutions: practise this topic on examproblems.com.