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
? × 25 mg

A patient is prescribed 50 mg of a drug 4 times a day for 7 days. The tablets contain 25 mg each. How many tablets N are needed for the whole course?

50 mg4× per day7 days25 mg/tablet
N = tablets
2.Easy
10 mg/1 mLV = ? mL

The prescription is 15 mg. The stock solution contains 10 mg in 1 mL. What volume V do you draw up?

15 mg10 mg/1 mL
V = mL
3.Medium
024681010 mL

A child weighing 14 kg is prescribed 10 mg/kg of a drug. The stock solution contains 20 mg/mL. Draw up the dose: what volume V do you give?

14 kg10 mg/kg20 mg/mL
V = mL
4.Medium
024681010 mL

A child weighing 17 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?

17 kg10 mg/kg50 mg/mL
V = mL
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 2080 micrograms. The ampoule contains 4 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

2080 mcg4 mg/mL
V = mL
6.Hard
125 mg/5 mLV = ? mL

A child weighing 8 kg is prescribed 5 mg/kg per dose of an oral suspension that contains 125 mg in 5 mL. What volume V do you give?

8 kg5 mg/kg125 mg/5 mL
V = mL

Answer key

  1. 1. N = 56 tablets
  2. 2. V = 1.5 mL
  3. 3. V = 7 mL
  4. 4. V = 3.4 mL
  5. 5. V = 0.52 mL
  6. 6. V = 1.6 mL

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