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 mcg

The prescription is 0.5 mg of a drug. The tablets contain 500 micrograms (mcg) each. How many tablets n do you give?

0.5 mg500 mcg/tablet
n = tablets
2.Easy
? × 20 mg

A patient is prescribed 40 mg of a drug 2 times a day for 7 days. The tablets contain 20 mg each. How many tablets N are needed for the whole course?

40 mg2× per day7 days20 mg/tablet
N = tablets
3.Medium
90 kg25 mg/kg/day3× per dayD = ? mg

A patient weighs 90 kg. The prescribed dose is 25 mg/kg per day, given in 3 equal doses. How many milligrams D are given per dose?

90 kg25 mg/kg/day3× per day
D = mg
4.Medium
32 kgBSA = 1.02 m²75 mg/m²D = ? mg

A patient weighing 32 kg has a body surface area of 1.02 m². The prescription is 75 mg/m². Find the dose D in mg.

32 kgBSA = 1.02 m²75 mg/m²
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 275 micrograms. The ampoule contains 0.5 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

275 mcg0.5 mg/mL
V = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 0.42 mg. The ampoule contains 2000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

0.42 mg2000 mcg/mL
V = mL

Answer key

  1. 1. n = 1 tablets
  2. 2. N = 28 tablets
  3. 3. D = 750 mg
  4. 4. D = 76.5 mg
  5. 5. V = 0.55 mL
  6. 6. V = 0.21 mL

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