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 120 mg. The stock solution contains 50 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

120 mg50 mg/1 mL
V = mL
2.Easy
200 mg/5 mLV = ? mL

The prescription is 300 mg. The stock solution contains 200 mg in 5 mL. What volume V do you draw up?

300 mg200 mg/5 mL
V = mL
3.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 200 mg. What volume V of the reconstituted solution do you give?

2 g+ 7.4 mL → 8 mL200 mg
V = mL
4.Medium
1 g+ 4.2 mLV = ? mL

A vial contains 1 g of powder. The label says: add 4.2 mL of water for injection to give a total volume of 5 mL. The prescription is 400 mg. What volume V of the reconstituted solution do you give?

1 g+ 4.2 mL → 5 mL400 mg
V = mL
5.Hard
125 mg/5 mLV = ? mL

A child weighing 24 kg is prescribed 12.5 mg/kg per dose of an oral suspension that contains 125 mg in 5 mL. What volume V do you give?

24 kg12.5 mg/kg125 mg/5 mL
V = mL
6.Hard
40k units500 mL? mL/h1000 units/h

An infusion contains 40000 units of a drug in 500 mL. The prescription is 1000 units per hour. At what rate R do you set the pump, in mL/h?

40000 units/500 mL1000 units/h
R = mL/h

Answer key

  1. 1. V = 2.4 mL
  2. 2. V = 7.5 mL
  3. 3. V = 0.8 mL
  4. 4. V = 2 mL
  5. 5. V = 12 mL
  6. 6. R = 12.5 mL/h

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