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 80 mg. The stock solution contains 20 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

80 mg20 mg/1 mL
V = mL
2.Easy
? × 0.125 mg

The prescription is 250 micrograms (mcg) of a drug. The tablets contain 0.125 mg each. How many tablets n do you give?

250 mcg0.125 mg/tablet
n = tablets
3.Medium
10%2 mLm = ? mg

How many milligrams of drug m are in 2 mL of a 10% (w/v) solution?

10% w/v2 mL
m = mg
4.Medium
1 g+ 3.4 mLV = ? mL

A vial contains 1 g of powder. The label says: add 3.4 mL of water for injection to give a total volume of 4 mL. The prescription is 200 mg. What volume V of the reconstituted solution do you give?

1 g+ 3.4 mL → 4 mL200 mg
V = mL
5.Hard
20k units1000 mL? mL/h1200 units/h

An infusion contains 20000 units of a drug in 1000 mL. The prescription is 1200 units per hour. At what rate R do you set the pump, in mL/h?

20000 units/1000 mL1200 units/h
R = mL/h
6.Hard
120 mg/5 mLV = ? mL

A child weighing 20 kg is prescribed 10 mg/kg per dose of an oral suspension that contains 120 mg in 5 mL. What volume V do you give? Round to one decimal place.

20 kg10 mg/kg120 mg/5 mL
V = mL

Answer key

  1. 1. V = 4 mL
  2. 2. n = 2 tablets
  3. 3. m = 200 mg
  4. 4. V = 0.8 mL
  5. 5. R = 60 mL/h
  6. 6. V = 8.3 mL

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