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
? × 250 mg

A patient is prescribed 500 mg of a drug. The tablets on the ward contain 250 mg each. How many tablets n do you give?

500 mg250 mg/tablet
n = tablets
2.Easy
500 mg/10 mLV = ? mL

The prescription is 400 mg. The stock solution contains 500 mg in 10 mL. What volume V do you draw up?

400 mg500 mg/10 mL
V = mL
3.Medium
25 kg15 mg/kgD = ? mg

A patient weighs 25 kg and is prescribed 15 mg/kg as a single dose. Find the dose D in mg.

25 kg15 mg/kg
D = mg
4.Medium
024681010 mL

A child weighing 11 kg is prescribed 15 mg/kg of a drug. The stock solution contains 25 mg/mL. Draw up the dose: what volume V do you give?

11 kg15 mg/kg25 mg/mL
V = mL
5.Hard
200 mg/5 mLV = ? mL

A patient weighs 116.6 lb. The prescription is 1 mg/kg as a single dose, and the stock contains 200 mg in 5 mL. Using 1 kg = 2.2 lb, what volume V do you give? Round to one decimal place.

116.6 lb1 mg/kg200 mg/5 mL1 kg = 2.2 lb
V = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 1400 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?

1400 units5000 units/mL
V = mL

Answer key

  1. 1. n = 2 tablets
  2. 2. V = 8 mL
  3. 3. D = 375 mg
  4. 4. V = 6.6 mL
  5. 5. V = 1.3 mL
  6. 6. V = 0.28 mL

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