A patient is prescribed 25 mg of a drug 4 times a day for 7 days. The tablets contain 50 mg each. How many tablets N are needed for the whole course? The tablets are scored, so they can be broken in half.
Dosage calculations worksheet with answers
A patient is prescribed 75 mg of a drug. The tablets on the ward contain 50 mg each. How many tablets n do you give? The tablets are scored, so they can be broken in half.
A patient weighing 40 kg has a body surface area of 1.22 m². The prescription is 20 mg/m². Find the dose D in mg.
A child weighing 26 kg is prescribed 5 mg/kg of a drug. The stock solution contains 50 mg/mL. Draw up the dose: what volume V do you give?
The prescription is 920 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?
An infusion contains 40000 units of a drug in 500 mL. The prescription is 1000 units per hour. At what rate R do you set the pump, in mL/h?
Answer key
- 1. N = 14 tablets
- 2. n = 1.5 tablets
- 3. D = 24.4 mg
- 4. V = 2.6 mL
- 5. V = 0.92 mL
- 6. R = 12.5 mL/h
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