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
? × 0.125 mg

The prescription is 375 micrograms (mcg) of a drug. The tablets contain 0.125 mg each. How many tablets n do you give?

375 mcg0.125 mg/tablet
n = tablets
2.Easy
? × 0.125 mg

The prescription is 187.5 micrograms (mcg) of a drug. The tablets contain 0.125 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.

187.5 mcg0.125 mg/tablet
n = tablets
3.Medium
1 g+ 4.2 mLV = ? mL

A vial contains 1 g of powder. The label says: add 4.2 mL of water for injection to give a total volume of 5 mL. The prescription is 160 mg. What volume V of the reconstituted solution do you give?

1 g+ 4.2 mL → 5 mL160 mg
V = mL
4.Medium
1:1000ampouleV = ? mL

An ampoule of epinephrine (adrenaline) is labelled 1:1000 (1 mg/mL). The prescription is 0.3 mg IM for anaphylaxis. What volume V do you draw up?

1:10000.3 mg
V = mL
5.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 2500 units of a drug that comes as 10000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

2500 units10000 units/mL
V = mL
6.Hard
00.10.20.30.40.50.60.70.80.911 mL

The prescription is 0.76 mg. The ampoule contains 2000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?

0.76 mg2000 mcg/mL
V = mL

Answer key

  1. 1. n = 3 tablets
  2. 2. n = 1.5 tablets
  3. 3. V = 0.8 mL
  4. 4. V = 0.3 mL
  5. 5. V = 0.25 mL
  6. 6. V = 0.38 mL

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