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 mcg/1 mLV = ? mL

The prescription is 0.05 mg by injection. The ampoule is labelled 100 micrograms per mL. What volume V do you draw up?

0.05 mg100 mcg/mL
V = mL
2.Easy
? × 5 mg

A patient is prescribed 7.5 mg of a drug. The tablets on the ward contain 5 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

7.5 mg5 mg/tablet
n = tablets
3.Medium
024681010 mL

A child weighing 8 kg is prescribed 20 mg/kg of a drug. The stock solution contains 40 mg/mL. Draw up the dose: what volume V do you give?

8 kg20 mg/kg40 mg/mL
V = mL
4.Medium
1 g+ 4.2 mLV = ? mL

A vial contains 1 g of powder. The label says: add 4.2 mL of water for injection to give a total volume of 5 mL. The prescription is 480 mg. What volume V of the reconstituted solution do you give?

1 g+ 4.2 mL → 5 mL480 mg
V = mL
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 510 micrograms. The ampoule contains 1 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

510 mcg1 mg/mL
V = mL
6.Hard
40k units500 mL? mL/h1500 units/h

An infusion contains 40000 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?

40000 units/500 mL1500 units/h
R = mL/h

Answer key

  1. 1. V = 0.5 mL
  2. 2. n = 1.5 tablets
  3. 3. V = 4 mL
  4. 4. V = 2.4 mL
  5. 5. V = 0.51 mL
  6. 6. R = 18.75 mL/h

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