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
0123455 mL

The prescription is 110 mg. The stock solution contains 250 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

110 mg250 mg/5 mL
V = mL
2.Easy
? × 20 mg

A patient is prescribed 20 mg of a drug 2 times a day for 5 days. The tablets contain 20 mg each. How many tablets N are needed for the whole course?

20 mg2× per day5 days20 mg/tablet
N = tablets
3.Medium
25 kg10 mg/kgD = ? mg

A patient weighs 25 kg and is prescribed 10 mg/kg as a single dose. Find the dose D in mg.

25 kg10 mg/kg
D = mg
4.Medium
024681010 mL

A child weighing 15 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?

15 kg15 mg/kg25 mg/mL
V = mL
5.Hard
250 mg/5 mLV = ? mL

A patient weighs 156.2 lb. The prescription is 2 mg/kg as a single dose, and the stock contains 250 mg in 5 mL. Using 1 kg = 2.2 lb, what volume V do you give? Round to one decimal place.

156.2 lb2 mg/kg250 mg/5 mL1 kg = 2.2 lb
V = mL
6.Hard
200 mg/5 mLV = ? mL

A patient weighs 151.8 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.

151.8 lb1 mg/kg200 mg/5 mL1 kg = 2.2 lb
V = mL

Answer key

  1. 1. V = 2.2 mL
  2. 2. N = 10 tablets
  3. 3. D = 250 mg
  4. 4. V = 9 mL
  5. 5. V = 2.8 mL
  6. 6. V = 1.7 mL

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