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
0123455 mL

The prescription is 50 mg. The stock solution contains 250 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

50 mg250 mg/5 mL
V = mL
2.Easy
? × 100 mcg

The prescription is 0.1 mg of a drug. The tablets contain 100 micrograms (mcg) each. How many tablets n do you give?

0.1 mg100 mcg/tablet
n = tablets
3.Medium
25 kg2 mg/kg/day2× per dayD = ? mg

A patient weighs 25 kg. The prescribed dose is 2 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

25 kg2 mg/kg/day2× per day
D = mg
4.Medium
024681010 mL

A child weighing 40 kg is prescribed 4 mg/kg of a drug. The stock solution contains 50 mg/mL. Draw up the dose: what volume V do you give?

40 kg4 mg/kg50 mg/mL
V = mL
5.Hard
20%stockwater = ? mL

You must prepare 500 mL of a 0.5% (w/v) solution from a 20% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 20%C₂ = 0.5%V₂ = 500 mL
W = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 520 units of a drug that comes as 1000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

520 units1000 units/mL
V = mL

Answer key

  1. 1. V = 1 mL
  2. 2. n = 1 tablets
  3. 3. D = 25 mg
  4. 4. V = 3.2 mL
  5. 5. W = 487.5 mL
  6. 6. V = 0.52 mL

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