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 15 mg. The stock solution contains 10 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?

15 mg10 mg/1 mL
V = mL
2.Easy
500 mg/10 mLV = ? mL

The prescription is 300 mg. The stock solution contains 500 mg in 10 mL. What volume V do you draw up?

300 mg500 mg/10 mL
V = mL
3.Medium
2%5 mLm = ? mg

How many milligrams of drug m are in 5 mL of a 2% (w/v) solution?

2% w/v5 mL
m = mg
4.Medium
2%100 mLm = ? mg

How many milligrams of drug m are in 100 mL of a 2% (w/v) solution?

2% w/v100 mL
m = mg
5.Hard
50k units250 mL? mL/h800 units/h

An infusion contains 50000 units of a drug in 250 mL. The prescription is 800 units per hour. At what rate R do you set the pump, in mL/h?

50000 units/250 mL800 units/h
R = mL/h
6.Hard
50%stockwater = ? mL

You must prepare 250 mL of a 1% (w/v) solution from a 50% (w/v) stock solution. How much water W must be added to the stock?

C₁ = 50%C₂ = 1%V₂ = 250 mL
W = mL

Answer key

  1. 1. V = 1.5 mL
  2. 2. V = 6 mL
  3. 3. m = 100 mg
  4. 4. m = 2000 mg
  5. 5. R = 4 mL/h
  6. 6. W = 245 mL

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