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 mg

A patient is prescribed 50 mg of a drug 2 times a day for 14 days. The tablets contain 50 mg each. How many tablets N are needed for the whole course?

50 mg2× per day14 days50 mg/tablet
N = tablets
2.Easy
400 mcg/1 mLV = ? mL

The prescription is 0.8 mg by injection. The ampoule is labelled 400 micrograms per mL. What volume V do you draw up?

0.8 mg400 mcg/mL
V = mL
3.Medium
25 kg2 mg/kgD = ? mg

A patient weighs 25 kg and is prescribed 2 mg/kg as a single dose. Find the dose D in mg.

25 kg2 mg/kg
D = mg
4.Medium
23 kgBSA = 0.98 m²20 mg/m²D = ? mg

A patient weighing 23 kg has a body surface area of 0.98 m². The prescription is 20 mg/m². Find the dose D in mg.

23 kgBSA = 0.98 m²20 mg/m²
D = mg
5.Hard
200 mg/5 mLV = ? mL

A child weighing 14 kg is prescribed 15 mg/kg per dose of an oral suspension that contains 200 mg in 5 mL. What volume V do you give? Round to one decimal place.

14 kg15 mg/kg200 mg/5 mL
V = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 240 units of a drug that comes as 1000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

240 units1000 units/mL
V = mL

Answer key

  1. 1. N = 28 tablets
  2. 2. V = 2 mL
  3. 3. D = 50 mg
  4. 4. D = 19.6 mg
  5. 5. V = 5.3 mL
  6. 6. V = 0.24 mL

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