The prescription is 50 mg. The stock solution contains 50 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?
Dosage calculations worksheet with answers
1.Easy
50 mg50 mg/1 mL
V = mL
2.Easy
The prescription is 240 mg. The stock solution contains 200 mg in 5 mL. What volume V do you draw up?
240 mg200 mg/5 mL
V = mL
3.Medium
A patient weighs 22 kg. The prescribed dose is 30 mg/kg per day, given in 3 equal doses. How many milligrams D are given per dose?
22 kg30 mg/kg/day3× per day
D = mg
4.Medium
A patient weighs 25 kg. The prescribed dose is 2 mg/kg per day, given in 4 equal doses. How many milligrams D are given per dose?
25 kg2 mg/kg/day4× per day
D = mg
5.Hard
A patient is 148 cm tall and weighs 57 kg. The prescription is 100 mg/m². Using the Mosteller formula BSA = √(height (cm) × weight (kg)/3600), find the dose D in mg.
148 cm57 kg100 mg/m²
D = mg
6.Hard
The prescription is 140 micrograms. The ampoule contains 0.5 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?
140 mcg0.5 mg/mL
V = mL
Answer key
- 1. V = 1 mL
- 2. V = 6 mL
- 3. D = 220 mg
- 4. D = 12.5 mg
- 5. D = 153.1 mg
- 6. V = 0.28 mL
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