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
500 mg/10 mLV = ? mL

The prescription is 300 mg. The stock solution contains 500 mg in 10 mL. What volume V do you draw up?

300 mg500 mg/10 mL
V = mL
2.Easy
0123455 mL

The prescription is 44 mg. The stock solution contains 40 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

44 mg40 mg/1 mL
V = mL
3.Medium
12 kg25 mg/kg/day4× per dayD = ? mg

A patient weighs 12 kg. The prescribed dose is 25 mg/kg per day, given in 4 equal doses. How many milligrams D are given per dose?

12 kg25 mg/kg/day4× per day
D = mg
4.Medium
500 mg+ 4.6 mLV = ? mL

A vial contains 500 mg of powder. The label says: add 4.6 mL of water for injection to give a total volume of 5 mL. The prescription is 100 mg. What volume V of the reconstituted solution do you give?

500 mg+ 4.6 mL → 5 mL100 mg
V = mL
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 0.22 mg. The ampoule contains 2000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

0.22 mg2000 mcg/mL
V = mL
6.Hard
50%stockV₁ = ? mL

You must prepare 500 mL of a 1% (w/v) solution from a 50% (w/v) stock solution. What volume of stock V₁ do you need?

C₁ = 50%C₂ = 1%V₂ = 500 mL
V₁ = mL

Answer key

  1. 1. V = 6 mL
  2. 2. V = 1.1 mL
  3. 3. D = 75 mg
  4. 4. V = 1 mL
  5. 5. V = 0.11 mL
  6. 6. V₁ = 10 mL

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