If a drug is to be administered at 0.1 mg per kg body weight, what is the dose for a 90 kg patient?

To determine the correct dose for a 90 kg patient when the dosage is set at 0.1 mg per kg of body weight, you simply need to multiply the patient's weight by the dosage per kilogram.

The calculation is as follows:

[

\text{Dose} = 0.1 , \text{mg/kg} \times 90 , \text{kg}

]

Carrying out the multiplication gives:

[

\text{Dose} = 9 , \text{mg}

]

Thus, for a patient weighing 90 kg, the correct dose of the drug would be 9 mg, which confirms that this amount adheres to the prescribed dosage based on their body weight.

Understanding this calculation is essential for safe medication administration as it ensures that the correct dose is given according to an individual's weight, which can significantly affect how a patient responds to the medication.