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

100 mg250 mg/5 mL
V = mL
2.Easy
0123455 mL

The prescription is 125 mg. The stock solution contains 250 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

125 mg250 mg/5 mL
V = mL
3.Medium
12 kg20 mg/kg/day2× per dayD = ? mg

A patient weighs 12 kg. The prescribed dose is 20 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

12 kg20 mg/kg/day2× per day
D = mg
4.Medium
2 g+ 7.4 mLV = ? mL

A vial contains 2 g of powder. The label says: add 7.4 mL of water for injection to give a total volume of 8 mL. The prescription is 375 mg. What volume V of the reconstituted solution do you give?

2 g+ 7.4 mL → 8 mL375 mg
V = mL
5.Hard
40k units250 mL? mL/h500 units/h

An infusion contains 40000 units of a drug in 250 mL. The prescription is 500 units per hour. At what rate R do you set the pump, in mL/h?

40000 units/250 mL500 units/h
R = mL/h
6.Hard
125 mg/5 mLV = ? mL

A child weighing 10 kg is prescribed 5 mg/kg per dose of an oral suspension that contains 125 mg in 5 mL. What volume V do you give?

10 kg5 mg/kg125 mg/5 mL
V = mL

Answer key

  1. 1. V = 2 mL
  2. 2. V = 2.5 mL
  3. 3. D = 120 mg
  4. 4. V = 1.5 mL
  5. 5. R = 3.125 mL/h
  6. 6. V = 2 mL

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