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 mcg

The prescription is 0.75 mg of a drug. The tablets contain 250 micrograms (mcg) each. How many tablets n do you give?

0.75 mg250 mcg/tablet
n = tablets
2.Easy
? × 20 mg

A patient is prescribed 20 mg of a drug 4 times a day for 10 days. The tablets contain 20 mg each. How many tablets N are needed for the whole course?

20 mg4× per day10 days20 mg/tablet
N = tablets
3.Medium
024681010 mL

A child weighing 40 kg is prescribed 5 mg/kg of a drug. The stock solution contains 25 mg/mL. Draw up the dose: what volume V do you give?

40 kg5 mg/kg25 mg/mL
V = mL
4.Medium
60 kg7.5 mg/kg/day4× per dayD = ? mg

A patient weighs 60 kg. The prescribed dose is 7.5 mg/kg per day, given in 4 equal doses. How many milligrams D are given per dose?

60 kg7.5 mg/kg/day4× per day
D = mg
5.Hard
200 mg/5 mLV = ? mL

A child weighing 8 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?

8 kg15 mg/kg200 mg/5 mL
V = mL
6.Hard
50k units250 mL? mL/h1250 units/h

An infusion contains 50000 units of a drug in 250 mL. The prescription is 1250 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/250 mL1250 units/h
R = mL/h

Answer key

  1. 1. n = 3 tablets
  2. 2. N = 40 tablets
  3. 3. V = 8 mL
  4. 4. D = 112.5 mg
  5. 5. V = 3 mL
  6. 6. R = 6.25 mL/h

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