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.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy
? × 25 mg

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

25 mg25 mg/tablet
n = tablets
2.Easy
? × 10 mg

A patient is prescribed 5 mg of a drug. The tablets on the ward contain 10 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

5 mg10 mg/tablet
n = tablets
3.Medium
2 g+ 9.2 mLV = ? mL

A vial contains 2 g of powder. The label says: add 9.2 mL of water for injection to give a total volume of 10 mL. The prescription is 160 mg. What volume V of the reconstituted solution do you give?

2 g+ 9.2 mL → 10 mL160 mg
V = mL
4.Medium
80 kg7.5 mg/kg/day3× per dayD = ? mg

A patient weighs 80 kg. The prescribed dose is 7.5 mg/kg per day, given in 3 equal doses. How many milligrams D are given per dose?

80 kg7.5 mg/kg/day3× per day
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 0.72 mg. The ampoule contains 1000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

0.72 mg1000 mcg/mL
V = mL
6.Hard
200 mg/5 mLV = ? mL

A patient weighs 132 lb. The prescription is 1 mg/kg as a single dose, and the stock contains 200 mg in 5 mL. Using 1 kg = 2.2 lb, what volume V do you give?

132 lb1 mg/kg200 mg/5 mL1 kg = 2.2 lb
V = mL

Answer key

  1. 1. n = 1 tablets
  2. 2. n = 0.5 tablets
  3. 3. V = 0.8 mL
  4. 4. D = 200 mg
  5. 5. V = 0.72 mL
  6. 6. V = 1.5 mL

Full step-by-step solutions: practise this topic on examproblems.com.