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

56 mg40 mg/1 mL
V = mL
2.Easy
? × 100 mg

A patient is prescribed 100 mg of a drug 4 times a day for 14 days. The tablets contain 100 mg each. How many tablets N are needed for the whole course?

100 mg4× per day14 days100 mg/tablet
N = tablets
3.Medium
1:10 000ampouleV = ? mL

A prefilled syringe of epinephrine (adrenaline) is labelled 1:10 000 (0.1 mg/mL). The prescription is 1 mg IV in cardiac arrest. What volume V do you give?

1:10 0001 mg
V = mL
4.Medium
25 kg25 mg/kg/day2× per dayD = ? mg

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

25 kg25 mg/kg/day2× per day
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 4000 units of a drug that comes as 10000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

4000 units10000 units/mL
V = mL
6.Hard
10%stockV₁ = ? mL

You must prepare 100 mL of a 1% (w/v) solution from a 10% (w/v) stock solution. What volume of stock V₁ do you need?

C₁ = 10%C₂ = 1%V₂ = 100 mL
V₁ = mL

Answer key

  1. 1. V = 1.4 mL
  2. 2. N = 56 tablets
  3. 3. V = 10 mL
  4. 4. D = 312.5 mg
  5. 5. V = 0.4 mL
  6. 6. V₁ = 10 mL

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