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
125 mg/5 mLV = ? mL

The prescription is 150 mg. The stock solution contains 125 mg in 5 mL. What volume V do you draw up?

150 mg125 mg/5 mL
V = mL
2.Easy
? × 500 mg

A patient is prescribed 250 mg of a drug 3 times a day for 14 days. The tablets contain 500 mg each. How many tablets N are needed for the whole course? The tablets are scored, so they can be broken in half.

250 mg3× per day14 days500 mg/tablet
N = tablets
3.Medium
024681010 mL

A child weighing 13 kg is prescribed 4 mg/kg of a drug. The stock solution contains 20 mg/mL. Draw up the dose: what volume V do you give?

13 kg4 mg/kg20 mg/mL
V = mL
4.Medium
70 kg20 mg/kg/day2× per dayD = ? mg

A patient weighs 70 kg. The prescribed dose is 20 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

70 kg20 mg/kg/day2× per day
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 3850 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?

3850 units5000 units/mL
V = mL
6.Hard
120 mg/5 mLV = ? mL

A child weighing 12 kg is prescribed 12.5 mg/kg per dose of an oral suspension that contains 120 mg in 5 mL. What volume V do you give? Round to one decimal place.

12 kg12.5 mg/kg120 mg/5 mL
V = mL

Answer key

  1. 1. V = 6 mL
  2. 2. N = 21 tablets
  3. 3. V = 2.6 mL
  4. 4. D = 700 mg
  5. 5. V = 0.77 mL
  6. 6. V = 6.3 mL

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