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 168 mg. The stock solution contains 40 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

168 mg40 mg/1 mL
V = mL
2.Easy
? × 5 mg

A patient is prescribed 5 mg of a drug 3 times a day for 10 days. The tablets contain 5 mg each. How many tablets N are needed for the whole course?

5 mg3× per day10 days5 mg/tablet
N = tablets
3.Medium
024681010 mL

A child weighing 16 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?

16 kg10 mg/kg20 mg/mL
V = mL
4.Medium
22 kgBSA = 0.88 m²20 mg/m²D = ? mg

A patient weighing 22 kg has a body surface area of 0.88 m². The prescription is 20 mg/m². Find the dose D in mg.

22 kgBSA = 0.88 m²20 mg/m²
D = mg
5.Hard
125 mg/5 mLV = ? mL

A child weighing 16 kg is prescribed 20 mg/kg per dose of an oral suspension that contains 125 mg in 5 mL. What volume V do you give?

16 kg20 mg/kg125 mg/5 mL
V = mL
6.Hard
20k units1000 mL? mL/h1200 units/h

An infusion contains 20000 units of a drug in 1000 mL. The prescription is 1200 units per hour. At what rate R do you set the pump, in mL/h?

20000 units/1000 mL1200 units/h
R = mL/h

Answer key

  1. 1. V = 4.2 mL
  2. 2. N = 30 tablets
  3. 3. V = 8 mL
  4. 4. D = 17.6 mg
  5. 5. V = 12.8 mL
  6. 6. R = 60 mL/h

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