Question 1125659: A certain antihistamine is often prescribed for allergies. A typical dose for a 100-pound person is 24 mg every six hours.
a. Following this dosage, how many 12.1mg chewable tablets would be taken in a week?
b. This antihistamine also comes in a liquid form with a concentration of 12.1mg/6mL. Following the prescribed dosage, how much liquid antihistamine should a 100-pound
person take in a week?
a. A 100-pound person could take _____ tablets in a week.
(Round to the nearest whole number as needed.)
b. A 100-pound person could take _____mL in a week.
Answer by KMST(5328)   (Show Source):
You can put this solution on YOUR website! AS A MATH PROBLEM:
The 12.1 mg amount is contained in a chewable tablet or in a 6-mL volume.\
a. For tablets
  
Rounding would give you  tablets in a week,
and that is what a pharmacist would dispense for a week.
b. For liquid formulation:
 
Rounding would give you  mL in a week.
A pharmacist would dispense 350mL if the prescription is for a week,
so that about 333mL could be taken out of the medicine bottle.
AS A REAL-LIFE QUESTION:
a. With 12.1 mg per tablets, 2 tablets would be 24.2mg,
which is close enough to 24 mg.
As a mother of a 100-pound child, you would be supposed to give
2 tablets every 6 hours, meaning  times a day
That translates to
 tablets per day, and
 tablets per week.
The problem does not look that bad from the point of view of a mother.
A mother with a 4th-grade education should be competent enough to figure this out,
and would count to see if there are enough tablets in the medicine bottle for a 1 week vacation.
If mothers cannot do that, their schooling has failed them.
b. A measuring teaspoon has a volume of 5mL,
and the small measuring cups that come with many syrup medications have lines for 5mL, but not for 6mL.
However, a resourceful mother will figure out what to do.
A concentration of 12.1mg/6mL means
In 11mL you would have  , and
in 12mg there would be  ,
so a mother would give her 100-lb child 12 mL each time,
measured as accurately as she could manage.
That would mean
about  each day, and
about  each week.
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