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 75 mg of a drug. The tablets on the ward contain 25 mg each. How many tablets n do you give?

75 mg25 mg/tablet
n = tablets
2.Easy
500 mcg/1 mLV = ? mL

The prescription is 0.25 mg by injection. The ampoule is labelled 500 micrograms per mL. What volume V do you draw up?

0.25 mg500 mcg/mL
V = mL
3.Medium
90 kg10 mg/kgD = ? mg

A patient weighs 90 kg and is prescribed 10 mg/kg as a single dose. Find the dose D in mg.

90 kg10 mg/kg
D = mg
4.Medium
15 kg2 mg/kg/day2× per dayD = ? mg

A patient weighs 15 kg. The prescribed dose is 2 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

15 kg2 mg/kg/day2× per day
D = mg
5.Hard
50k units500 mL? mL/h1500 units/h

An infusion contains 50000 units of a drug in 500 mL. The prescription is 1500 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/500 mL1500 units/h
R = mL/h
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 135 micrograms. The ampoule contains 0.5 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

135 mcg0.5 mg/mL
V = mL

Answer key

  1. 1. n = 3 tablets
  2. 2. V = 0.5 mL
  3. 3. D = 900 mg
  4. 4. D = 15 mg
  5. 5. R = 15 mL/h
  6. 6. V = 0.27 mL

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