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 150 mg of a drug. The tablets on the ward contain 100 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

150 mg100 mg/tablet
n = tablets
2.Easy
0123455 mL

The prescription is 17.5 mg. The stock solution contains 125 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

17.5 mg125 mg/5 mL
V = mL
3.Medium
104 kgBSA = 1.97 m²100 mg/m²D = ? mg

A patient weighing 104 kg has a body surface area of 1.97 m². The prescription is 100 mg/m². Find the dose D in mg.

104 kgBSA = 1.97 m²100 mg/m²
D = mg
4.Medium
024681010 mL

A child weighing 32 kg is prescribed 2 mg/kg of a drug. The stock solution contains 10 mg/mL. Draw up the dose: what volume V do you give?

32 kg2 mg/kg10 mg/mL
V = mL
5.Hard
40 mg/1 mLV = ? mL

A patient weighs 90.2 lb. The prescription is 5 mg/kg as a single dose, and the stock contains 40 mg in 1 mL. Using 1 kg = 2.2 lb, what volume V do you give? Round to one decimal place.

90.2 lb5 mg/kg40 mg/1 mL1 kg = 2.2 lb
V = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 2700 units of a drug that comes as 10000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

2700 units10000 units/mL
V = mL

Answer key

  1. 1. n = 1.5 tablets
  2. 2. V = 0.7 mL
  3. 3. D = 197 mg
  4. 4. V = 6.4 mL
  5. 5. V = 5.1 mL
  6. 6. V = 0.27 mL

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