The prescription is 20 mg. The stock solution contains 50 mg in 1 mL. What volume V do you draw up?
Dosage calculations worksheet with answers
1.Easy
20 mg50 mg/1 mL
V = mL
2.Easy
The prescription is 7.5 mg. The stock solution contains 10 mg in 1 mL. What volume V do you draw up?
7.5 mg10 mg/1 mL
V = mL
3.Medium
A child weighing 40 kg is prescribed 2.5 mg/kg of a drug. The stock solution contains 20 mg/mL. Draw up the dose: what volume V do you give?
40 kg2.5 mg/kg20 mg/mL
V = mL
4.Medium
A child weighing 16 kg is prescribed 20 mg/kg of a drug. The stock solution contains 50 mg/mL. Draw up the dose: what volume V do you give?
16 kg20 mg/kg50 mg/mL
V = mL
5.Hard
The prescription is 1.28 mg. The ampoule contains 2000 micrograms per mL. Draw up the dose in the 1 mL syringe: what volume V do you give?
1.28 mg2000 mcg/mL
V = mL
6.Hard
A child weighing 20 kg is prescribed 10 mg/kg per dose of an oral suspension that contains 200 mg in 5 mL. What volume V do you give?
20 kg10 mg/kg200 mg/5 mL
V = mL
Answer key
- 1. V = 0.4 mL
- 2. V = 0.75 mL
- 3. V = 5 mL
- 4. V = 6.4 mL
- 5. V = 0.64 mL
- 6. V = 5 mL
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