Final answer:
To calculate the total mls of ampicillin given to a
child over 24 hours at a dosage of
and
concentration, you first convert the child's weight to kilograms, calculate the dose per administration and determine the volume for one administration. Multiplying this volume by the number of administrations in
, the total volume administered is
.
Step-by-step explanation:
To determine how many total milliliters (mls) of ampicillin should be administered to a child weighing
over
, given a dosage of
every eight hours (Q8HR) and a concentration of
.
follow these steps:
- Convert the child's weight from pounds to kilograms using the conversion factor
. - Multiply the child's weight in kilograms by the dosage
to find the total dosage per administration. - Divide the total dosage per administration by the concentration of the medicine
to determine the volume to be administered each time. - Since the medication is to be administered every
, calculate the total number of administrations over
. - Multiply the volume per administration by the total number of administrations to get the total volume for

First, convert the child's weight:

Next, calculate the dosage per administration:
.
Then find the volume for one administration:
(rounded to four decimal places).
The child receives the medication Q8HR, which is three times per day, so the total volume for
is:
(rounded to one decimal place).
Therefore, the correct choice is (b)
