Question

A child is prescribed amoxicillin (42mg/kg/day) to be given 3 times per day. If he weighs 35 pounds, what is the maximum dose that he should receive? (round to the nearest whole number)

Answer 1

The child should receive a maximum of 661.5mg of amoxicillin, divided into 3 times per day of a 221mg dose.

Step-by-step explanation:

1st) It is necessary to use the relation between kg and pounds (1 pound = 0.45kg).

`35pounds*(0.45kg)/(1pound)*42(mg)/(kg*day)=661.5(mg)/(day)`

2nd) Now that we know the the child needs 661.5mg/day, it is necessary to divide that amount by 3, to calculate the dose:

`(661.5mg)/(3)=220.5mg`

So, the child should receive a maximum of 661.5mg of amoxicillin, divided into 3 times per day of a 221mg dose.