Let's consider a 35 kg child requires amoxicillin at a dose of 50 mg/kg/day divided into 4 doses. If the amoxicillin suspension comes in 250 mg/ 5 mL, how many mL does the child require every 6 hours?
Accepted Solution
A:
To calculate how many milliliters (mL) of amoxicillin suspension the child requires every 6 hours, you can follow these steps:
Step 1: Calculate the total daily dose of amoxicillin for the child.
The child's weight is 35 kg, and the dose is 50 mg/kg/day. So, the total daily dose is:
Total Daily Dose = Weight (kg) Γ Dose (mg/kg/day)
Total Daily Dose = 35 kg Γ 50 mg/kg/day
Total Daily Dose = 1750 mg/day
Step 2: Divide the total daily dose into 4 equal doses since the medication is to be divided into 4 doses a day.
Each dose = Total Daily Dose / Number of Doses per Day
Each dose = 1750 mg / 4
Each dose = 437.5 mg
Step 3: Determine how many milliliters are needed for each dose.
The amoxicillin suspension comes in a concentration of 250 mg per 5 mL. To find out how many mL are needed for each dose of 437.5 mg, you can set up a proportion:
(250 mg) / (5 mL) = (437.5 mg) / (x mL)
Cross-multiply:
250 * x = 437.5 * 5
Now, solve for x (the number of mL needed for each dose):
x = (437.5 * 5) / 250
x = 2187.5 / 250
x = 8.75 mL
So, the child requires 8.75 mL of amoxicillin suspension every 6 hours.