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 mcg/1 mLV = ? mL

The prescription is 0.15 mg by injection. The ampoule is labelled 100 micrograms per mL. What volume V do you draw up?

0.15 mg100 mcg/mL
V = mL
2.Easy
? × 50 mg

A patient is prescribed 25 mg of a drug 2 times a day for 10 days. The tablets contain 50 mg each. How many tablets N are needed for the whole course? The tablets are scored, so they can be broken in half.

25 mg2× per day10 days50 mg/tablet
N = tablets
3.Medium
1:10 000ampouleV = ? mL

A prefilled syringe of epinephrine (adrenaline) is labelled 1:10 000 (0.1 mg/mL). The prescription is 1 mg IV in cardiac arrest. What volume V do you give?

1:10 0001 mg
V = mL
4.Medium
500 mg+ 1.8 mLV = ? mL

A vial contains 500 mg of powder. The label says: add 1.8 mL of water for injection to give a total volume of 2 mL. The prescription is 150 mg. What volume V of the reconstituted solution do you give?

500 mg+ 1.8 mL → 2 mL150 mg
V = mL
5.Hard
250 mg/5 mLV = ? mL

A child weighing 28 kg is prescribed 15 mg/kg per dose of an oral suspension that contains 250 mg in 5 mL. What volume V do you give?

28 kg15 mg/kg250 mg/5 mL
V = mL
6.Hard
120 mg/5 mLV = ? mL

A child weighing 8 kg is prescribed 12.5 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.

8 kg12.5 mg/kg120 mg/5 mL
V = mL

Answer key

  1. 1. V = 1.5 mL
  2. 2. N = 10 tablets
  3. 3. V = 10 mL
  4. 4. V = 0.6 mL
  5. 5. V = 8.4 mL
  6. 6. V = 4.2 mL

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