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
? × 100 mg

A patient is prescribed 300 mg of a drug. The tablets on the ward contain 100 mg each. How many tablets n do you give?

300 mg100 mg/tablet
n = tablets
2.Easy
0123455 mL

The prescription is 200 mg. The stock solution contains 50 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

200 mg50 mg/1 mL
V = mL
3.Medium
12 kg30 mg/kg/day2× per dayD = ? mg

A patient weighs 12 kg. The prescribed dose is 30 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

12 kg30 mg/kg/day2× per day
D = mg
4.Medium
1:10 000ampouleV = ? mL

A prefilled syringe of epinephrine (adrenaline) is labelled 1:10 000 (0.1 mg/mL). The prescription is 1 mg IV in cardiac arrest. What volume V do you give?

1:10 0001 mg
V = mL
5.Hard
250 mg/5 mLV = ? mL

A patient weighs 77 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?

77 lb2 mg/kg250 mg/5 mL1 kg = 2.2 lb
V = mL
6.Hard
50k units250 mL? mL/h1500 units/h

An infusion contains 50000 units of a drug in 250 mL. The prescription is 1500 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/250 mL1500 units/h
R = mL/h

Answer key

  1. 1. n = 3 tablets
  2. 2. V = 4 mL
  3. 3. D = 180 mg
  4. 4. V = 10 mL
  5. 5. V = 1.4 mL
  6. 6. R = 7.5 mL/h

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