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
? × 12.5 mg

A patient is prescribed 31.25 mg of a drug. The tablets on the ward contain 12.5 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

31.25 mg12.5 mg/tablet
n = tablets
2.Easy
0123455 mL

The prescription is 22.5 mg. The stock solution contains 25 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

22.5 mg25 mg/1 mL
V = mL
3.Medium
1:1000ampouleV = ? mL

An ampoule of epinephrine (adrenaline) is labelled 1:1000 (1 mg/mL). The prescription is 0.15 mg IM for anaphylaxis. What volume V do you draw up?

1:10000.15 mg
V = mL
4.Medium
42 kgBSA = 1.32 m²75 mg/m²D = ? mg

A patient weighing 42 kg has a body surface area of 1.32 m². The prescription is 75 mg/m². Find the dose D in mg.

42 kgBSA = 1.32 m²75 mg/m²
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 0.94 mg. The ampoule contains 1000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

0.94 mg1000 mcg/mL
V = mL
6.Hard
40 mg/1 mLV = ? mL

A patient weighs 103.4 lb. The prescription is 10 mg/kg as a single dose, and the stock contains 40 mg in 1 mL. Using 1 kg = 2.2 lb, what volume V do you give? Round to one decimal place.

103.4 lb10 mg/kg40 mg/1 mL1 kg = 2.2 lb
V = mL

Answer key

  1. 1. n = 2.5 tablets
  2. 2. V = 0.9 mL
  3. 3. V = 0.15 mL
  4. 4. D = 99 mg
  5. 5. V = 0.94 mL
  6. 6. V = 11.8 mL

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