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
? × 50 mg

A patient is prescribed 50 mg of a drug 2 times a day for 7 days. The tablets contain 50 mg each. How many tablets N are needed for the whole course?

50 mg2× per day7 days50 mg/tablet
N = tablets
2.Easy
0123455 mL

The prescription is 70 mg. The stock solution contains 250 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

70 mg250 mg/5 mL
V = mL
3.Medium
60 kg7.5 mg/kg/day3× per dayD = ? mg

A patient weighs 60 kg. The prescribed dose is 7.5 mg/kg per day, given in 3 equal doses. How many milligrams D are given per dose?

60 kg7.5 mg/kg/day3× per day
D = mg
4.Medium
0.5%w/vV = ? mL

A dose of 25 mg is needed from a 0.5% (w/v) solution. What volume V contains this dose?

25 mg0.5% w/v
V = mL
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 0.29 mg. The ampoule contains 1000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

0.29 mg1000 mcg/mL
V = mL
6.Hard
40k units1000 mL? mL/h800 units/h

An infusion contains 40000 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?

40000 units/1000 mL800 units/h
R = mL/h

Answer key

  1. 1. N = 14 tablets
  2. 2. V = 1.4 mL
  3. 3. D = 150 mg
  4. 4. V = 5 mL
  5. 5. V = 0.29 mL
  6. 6. R = 20 mL/h

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