Question

question: 9 of 25
a 10-year-old child weighing 30 kg is prescribed amoxicillin for an infection. the recommended dosage is 20 mg/kg/day divided into two doses. calculate the safe dosage per dose for this child.

Explanation:

Step1: Calculate the total daily dosage

The formula for total daily dosage is \( \text{Total daily dosage}=\text{Weight (kg)}\times\text{Dosage per kg per day}\).
Given the weight of the child \(w = 30\) kg and the dosage per kg per day \(d=20\) mg/kg/day.
So, \(\text{Total daily dosage}=30\times20 = 600\) mg.

Step2: Calculate the dosage per dose

Since the daily dosage is divided into \(n = 2\) doses.
The formula for dosage per dose is \(\text{Dosage per dose}=\frac{\text{Total daily dosage}}{n}\).
Substitute the values: \(\text{Dosage per dose}=\frac{600}{2}=300\) mg.

Answer:

$300$ mg