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
? × 100 mg

A patient is prescribed 200 mg of a drug 3 times a day for 10 days. The tablets contain 100 mg each. How many tablets N are needed for the whole course?

200 mg3× per day10 days100 mg/tablet
N = tablets
2.Easy
? × 0.5 mg

The prescription is 1000 micrograms (mcg) of a drug. The tablets contain 0.5 mg each. How many tablets n do you give?

1000 mcg0.5 mg/tablet
n = tablets
3.Medium
45 kg10 mg/kgD = ? mg

A patient weighs 45 kg and is prescribed 10 mg/kg as a single dose. Find the dose D in mg.

45 kg10 mg/kg
D = mg
4.Medium
22 kg2 mg/kg/day4× per dayD = ? mg

A patient weighs 22 kg. The prescribed dose is 2 mg/kg per day, given in 4 equal doses. How many milligrams D are given per dose?

22 kg2 mg/kg/day4× per day
D = mg
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 0.26 mg. The ampoule contains 2000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

0.26 mg2000 mcg/mL
V = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 2850 units of a drug that comes as 5000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

2850 units5000 units/mL
V = mL

Answer key

  1. 1. N = 60 tablets
  2. 2. n = 2 tablets
  3. 3. D = 450 mg
  4. 4. D = 11 mg
  5. 5. V = 0.13 mL
  6. 6. V = 0.57 mL

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