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
0123455 mL

The prescription is 77.5 mg. The stock solution contains 125 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

77.5 mg125 mg/5 mL
V = mL
2.Easy
0123455 mL

The prescription is 80 mg. The stock solution contains 40 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

80 mg40 mg/1 mL
V = mL
3.Medium
18 kg5 mg/kg/day2× per dayD = ? mg

A patient weighs 18 kg. The prescribed dose is 5 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

18 kg5 mg/kg/day2× per day
D = mg
4.Medium
500 mg+ 9.6 mLV = ? mL

A vial contains 500 mg of powder. The label says: add 9.6 mL of water for injection to give a total volume of 10 mL. The prescription is 100 mg. What volume V of the reconstituted solution do you give?

500 mg+ 9.6 mL → 10 mL100 mg
V = mL
5.Hard
25k units500 mL? mL/h1200 units/h

An infusion contains 25000 units of a drug in 500 mL. The prescription is 1200 units per hour. At what rate R do you set the pump, in mL/h?

25000 units/500 mL1200 units/h
R = mL/h
6.Hard
40 mg/1 mLV = ? mL

A child weighing 10 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.

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

Answer key

  1. 1. V = 3.1 mL
  2. 2. V = 2 mL
  3. 3. D = 45 mg
  4. 4. V = 2 mL
  5. 5. R = 24 mL/h
  6. 6. V = 3.8 mL

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