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
40 mg/1 mLV = ? mL

The prescription is 32 mg. The stock solution contains 40 mg in 1 mL. What volume V do you draw up?

32 mg40 mg/1 mL
V = mL
2.Easy
0123455 mL

The prescription is 36 mg. The stock solution contains 200 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

36 mg200 mg/5 mL
V = mL
3.Medium
500 mg+ 9.6 mLV = ? mL

A vial contains 500 mg of powder. The label says: add 9.6 mL of water for injection to give a total volume of 10 mL. The prescription is 20 mg. What volume V of the reconstituted solution do you give?

500 mg+ 9.6 mL → 10 mL20 mg
V = mL
4.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
5.Hard
50%stockV₁ = ? mL

You must prepare 200 mL of a 2.5% (w/v) solution from a 50% (w/v) stock solution. What volume of stock V₁ do you need?

C₁ = 50%C₂ = 2.5%V₂ = 200 mL
V₁ = mL
6.Hard
40 mg/1 mLV = ? mL

A patient weighs 79.2 lb. The prescription is 2 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?

79.2 lb2 mg/kg40 mg/1 mL1 kg = 2.2 lb
V = mL

Answer key

  1. 1. V = 0.8 mL
  2. 2. V = 0.9 mL
  3. 3. V = 0.4 mL
  4. 4. D = 25 mg
  5. 5. V₁ = 10 mL
  6. 6. V = 1.8 mL

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