Question

How many tablets of Children's Chewable Tylenol, each containing 80 mg of acetaminophen, are needed for a 37-lb child following the recommended dosage of 8 mg/kg? (Round down to the nearest half tablet)

A) 1
B) 1.5
C) 2
D) 2.5

Answer 1

To determine how many tablets of Children's Chewable Tylenol are needed for a 37-lb child, first convert the child's weight to kilograms, then calculate the total recommended dose, and finally divide this by the amount of acetaminophen per tablet. Upon calculation, the child would need 1.5 tablets of Tylenol (rounded down to the nearest half tablet).

Step-by-step explanation:

To find out how many tablets of Children's Chewable Tylenol, each containing 80 mg of acetaminophen, are needed for a 37-lb child at the recommended dosage of 8 mg/kg, we need to do a few calculations.

First, we convert the child's weight from pounds to kilograms by dividing it by 2.2046 (since 1 kilogram is equal to 2.2046 pounds):

37 lb / 2.2046 = 16.7795 kg (rounded to four decimal places).

Next, we calculate the total recommended dose of acetaminophen for the child:

16.7795 kg * 8 mg/kg = 134.236 mg.

We then determine the number of tablets required by dividing the total recommended dose by the amount of acetaminophen in one tablet:

134.236 mg / 80 mg/tablet = 1.67795 tablets.

Rounding down to the nearest half tablet gives us 1.5

Therefore, the correct answer is:

B) 1.5