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 188 mg. The stock solution contains 40 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

188 mg40 mg/1 mL
V = mL
2.Easy
80 mg/2 mLV = ? mL

The prescription is 120 mg. The stock solution contains 80 mg in 2 mL. What volume V do you draw up?

120 mg80 mg/2 mL
V = mL
3.Medium
60 kg7.5 mg/kg/day2× per dayD = ? mg

A patient weighs 60 kg. The prescribed dose is 7.5 mg/kg per day, given in 2 equal doses. How many milligrams D are given per dose?

60 kg7.5 mg/kg/day2× per day
D = mg
4.Medium
90 kg5 mg/kgD = ? mg

A patient weighs 90 kg and is prescribed 5 mg/kg as a single dose. Find the dose D in mg.

90 kg5 mg/kg
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 475 micrograms. The ampoule contains 0.5 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

475 mcg0.5 mg/mL
V = mL
6.Hard
25%stockV₁ = ? mL

You must prepare 1000 mL of a 0.5% (w/v) solution from a 25% (w/v) stock solution. What volume of stock V₁ do you need?

C₁ = 25%C₂ = 0.5%V₂ = 1000 mL
V₁ = mL

Answer key

  1. 1. V = 4.7 mL
  2. 2. V = 3 mL
  3. 3. D = 225 mg
  4. 4. D = 450 mg
  5. 5. V = 0.95 mL
  6. 6. V₁ = 20 mL

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