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
? × 50 mcg

The prescription is 0.15 mg of a drug. The tablets contain 50 micrograms (mcg) each. How many tablets n do you give?

0.15 mg50 mcg/tablet
n = tablets
2.Easy
0123455 mL

The prescription is 128 mg. The stock solution contains 200 mg in 5 mL. Draw up the dose in the syringe: what volume V do you give?

128 mg200 mg/5 mL
V = mL
3.Medium
22 kg2 mg/kgD = ? mg

A patient weighs 22 kg and is prescribed 2 mg/kg as a single dose. Find the dose D in mg.

22 kg2 mg/kg
D = mg
4.Medium
32 kgBSA = 1.01 m²50 mg/m²D = ? mg

A patient weighing 32 kg has a body surface area of 1.01 m². The prescription is 50 mg/m². Find the dose D in mg.

32 kgBSA = 1.01 m²50 mg/m²
D = mg
5.Hard
50%stockwater = ? mL

You must prepare 500 mL of a 2.5% (w/v) solution from a 50% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 50%C₂ = 2.5%V₂ = 500 mL
W = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 370 micrograms. The ampoule contains 0.5 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

370 mcg0.5 mg/mL
V = mL

Answer key

  1. 1. n = 3 tablets
  2. 2. V = 3.2 mL
  3. 3. D = 44 mg
  4. 4. D = 50.5 mg
  5. 5. W = 475 mL
  6. 6. V = 0.74 mL

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