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
? × 100 mg

A patient is prescribed 200 mg of a drug 2 times a day for 14 days. The tablets contain 100 mg each. How many tablets N are needed for the whole course?

200 mg2× per day14 days100 mg/tablet
N = tablets
2.Easy
0123455 mL

The prescription is 20 mg. The stock solution contains 25 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

20 mg25 mg/1 mL
V = mL
3.Medium
024681010 mL

A child weighing 7 kg is prescribed 10 mg/kg of a drug. The stock solution contains 50 mg/mL. Draw up the dose: what volume V do you give?

7 kg10 mg/kg50 mg/mL
V = mL
4.Medium
102 kgBSA = 1.99 m²75 mg/m²D = ? mg

A patient weighing 102 kg has a body surface area of 1.99 m². The prescription is 75 mg/m². Find the dose D in mg.

102 kgBSA = 1.99 m²75 mg/m²
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 1100 units of a drug that comes as 5000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

1100 units5000 units/mL
V = mL
6.Hard
49 kg143 cmBSA = √(h·w/3600)60 mg/m²D = ? mg

A patient is 143 cm tall and weighs 49 kg. The prescription is 60 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.

143 cm49 kg60 mg/m²
D = mg

Answer key

  1. 1. N = 56 tablets
  2. 2. V = 0.8 mL
  3. 3. V = 1.4 mL
  4. 4. D = 149.3 mg
  5. 5. V = 0.22 mL
  6. 6. D = 83.71 mg

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