The prescription is 0.25 mg of a drug. The tablets contain 250 micrograms (mcg) each. How many tablets n do you give?
Dosage calculations worksheet with answers
1.Easy
0.25 mg250 mcg/tablet
n = tablets
2.Easy
The prescription is 38 mg. The stock solution contains 10 mg in 1 mL. Draw up the dose in the syringe: what volume V do you give?
38 mg10 mg/1 mL
V = mL
3.Medium
A patient weighing 23 kg has a body surface area of 0.87 m². The prescription is 375 mg/m². Find the dose D in mg.
23 kgBSA = 0.87 m²375 mg/m²
D = mg
4.Medium
A patient weighing 84 kg has a body surface area of 1.74 m². The prescription is 100 mg/m². Find the dose D in mg.
84 kgBSA = 1.74 m²100 mg/m²
D = mg
5.Hard
The prescription is 310 micrograms. The ampoule contains 0.5 mg/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?
310 mcg0.5 mg/mL
V = mL
6.Hard
The prescription is 210 units of a drug that comes as 1000 units/mL. Draw up the dose in the 1 mL syringe: what volume V do you give?
210 units1000 units/mL
V = mL
Answer key
- 1. n = 1 tablets
- 2. V = 3.8 mL
- 3. D = 326.3 mg
- 4. D = 174 mg
- 5. V = 0.62 mL
- 6. V = 0.21 mL
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