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
50 mcg/1 mLV = ? mL

The prescription is 0.0375 mg by injection. The ampoule is labelled 50 micrograms per mL. What volume V do you draw up?

0.0375 mg50 mcg/mL
V = mL
2.Easy
0123455 mL

The prescription is 45 mg. The stock solution contains 125 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

45 mg125 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 600 mg. What volume V of the reconstituted solution do you give?

2 g+ 7.4 mL → 8 mL600 mg
V = mL
4.Medium
1:1000ampouleV = ? mL

An ampoule of epinephrine (adrenaline) is labelled 1:1000 (1 mg/mL). The prescription is 0.5 mg IM for anaphylaxis. What volume V do you draw up?

1:10000.5 mg
V = mL
5.Hard
21 kg103 cmBSA = √(h·w/3600)50 mg/m²D = ? mg

A patient is 103 cm tall and weighs 21 kg. The prescription is 50 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

103 cm21 kg50 mg/m²
D = mg
6.Hard
25k units250 mL? mL/h1000 units/h

An infusion contains 25000 units of a drug in 250 mL. The prescription is 1000 units per hour. At what rate R do you set the pump, in mL/h?

25000 units/250 mL1000 units/h
R = mL/h

Answer key

  1. 1. V = 0.75 mL
  2. 2. V = 1.8 mL
  3. 3. V = 2.4 mL
  4. 4. V = 0.5 mL
  5. 5. D = 38.76 mg
  6. 6. R = 10 mL/h

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