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
? × 500 mg

A patient is prescribed 500 mg of a drug 3 times a day for 7 days. The tablets contain 500 mg each. How many tablets N are needed for the whole course?

500 mg3× per day7 days500 mg/tablet
N = tablets
2.Easy
100 mg/5 mLV = ? mL

The prescription is 75 mg. The stock solution contains 100 mg in 5 mL. What volume V do you draw up?

75 mg100 mg/5 mL
V = mL
3.Medium
25 kg30 mg/kgD = ? mg

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

25 kg30 mg/kg
D = mg
4.Medium
30 kg2 mg/kg/day2× per dayD = ? mg

A patient weighs 30 kg. The prescribed dose is 2 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

30 kg2 mg/kg/day2× per day
D = mg
5.Hard
61 kg170 cmBSA = √(h·w/3600)60 mg/m²D = ? mg

A patient is 170 cm tall and weighs 61 kg. The prescription is 60 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

170 cm61 kg60 mg/m²
D = mg
6.Hard
40 mg/1 mLV = ? mL

A patient weighs 63.8 lb. The prescription is 10 mg/kg as a single dose, and the stock contains 40 mg in 1 mL. Using 1 kg = 2.2 lb, what volume V do you give? Round to one decimal place.

63.8 lb10 mg/kg40 mg/1 mL1 kg = 2.2 lb
V = mL

Answer key

  1. 1. N = 21 tablets
  2. 2. V = 3.75 mL
  3. 3. D = 750 mg
  4. 4. D = 30 mg
  5. 5. D = 101.8 mg
  6. 6. V = 7.3 mL

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