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The dosage for the painkiller is \(0.05 \, \text{mg/kg}\) of a patient's body mass. The patient weighs \(100 \, \text{kg}\).

To calculate the amount of drug to administer, we multiply the dosage per kilogram by the patient's weight:

\[
\text{Total dosage} = 0.05 \, \text{mg/kg} \times 100 \, \text{kg} = 5 \, \text{mg}
\]

So, **5 mg** of the drug should be administered to the patient.

Do you want more details or have any questions?

Here are five related questions:
1. What if the patient weighed 80 kg instead of 100 kg?
2. How would the dosage change if the prescription was 0.07 mg/kg?
3. What if the dosage was calculated in micrograms instead of milligrams?
4. How is body mass index (BMI) related to drug dosage?
5. Can drug dosage depend on factors other than weight, like age or medical history?

**Tip:** When calculating dosages, always confirm the units (e.g., mg, micrograms) to avoid dosage errors.

The dosage for a painkiller is 0.05 mg per kilogram of a patient's body mass. How much of the drug should be administered to a patient who is 100 kg?

Learn how to calculate the appropriate dosage for a patient weighing 100 kg when the prescription calls for 0.05 mg per kilogram of body mass. Understand dosage calculation through multiplication, suitable for Grades 5-7.

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