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
? × 0.5 mg

The prescription is 250 micrograms (mcg) of a drug. The tablets contain 0.5 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

250 mcg0.5 mg/tablet
n = tablets
2.Easy
? × 500 mg

A patient is prescribed 500 mg of a drug 2 times a day for 5 days. The tablets contain 500 mg each. How many tablets N are needed for the whole course?

500 mg2× per day5 days500 mg/tablet
N = tablets
3.Medium
024681010 mL

A child weighing 18 kg is prescribed 4 mg/kg of a drug. The stock solution contains 10 mg/mL. Draw up the dose: what volume V do you give?

18 kg4 mg/kg10 mg/mL
V = mL
4.Medium
12 kg2 mg/kgD = ? mg

A patient weighs 12 kg and is prescribed 2 mg/kg as a single dose. Find the dose D in mg.

12 kg2 mg/kg
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 1580 micrograms. The ampoule contains 2 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

1580 mcg2 mg/mL
V = mL
6.Hard
200 mg/5 mLV = ? mL

A patient weighs 107.8 lb. The prescription is 2 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? Round to one decimal place.

107.8 lb2 mg/kg200 mg/5 mL1 kg = 2.2 lb
V = mL

Answer key

  1. 1. n = 0.5 tablets
  2. 2. N = 10 tablets
  3. 3. V = 7.2 mL
  4. 4. D = 24 mg
  5. 5. V = 0.79 mL
  6. 6. V = 2.5 mL

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