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 55 mg. The stock solution contains 50 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

55 mg50 mg/1 mL
V = mL
2.Easy
? × 20 mg

A patient is prescribed 20 mg of a drug 3 times a day for 14 days. The tablets contain 20 mg each. How many tablets N are needed for the whole course?

20 mg3× per day14 days20 mg/tablet
N = tablets
3.Medium
15 kg15 mg/kgD = ? mg

A patient weighs 15 kg and is prescribed 15 mg/kg as a single dose. Find the dose D in mg.

15 kg15 mg/kg
D = mg
4.Medium
62 kgBSA = 1.47 m²20 mg/m²D = ? mg

A patient weighing 62 kg has a body surface area of 1.47 m². The prescription is 20 mg/m². Find the dose D in mg.

62 kgBSA = 1.47 m²20 mg/m²
D = mg
5.Hard
25k units1000 mL? mL/h800 units/h

An infusion contains 25000 units of a drug in 1000 mL. The prescription is 800 units per hour. At what rate R do you set the pump, in mL/h?

25000 units/1000 mL800 units/h
R = mL/h
6.Hard
125 mg/5 mLV = ? mL

A patient weighs 41.8 lb. The prescription is 5 mg/kg as a single dose, and the stock contains 125 mg in 5 mL. Using 1 kg = 2.2 lb, what volume V do you give?

41.8 lb5 mg/kg125 mg/5 mL1 kg = 2.2 lb
V = mL

Answer key

  1. 1. V = 1.1 mL
  2. 2. N = 42 tablets
  3. 3. D = 225 mg
  4. 4. D = 29.4 mg
  5. 5. R = 32 mL/h
  6. 6. V = 3.8 mL

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