using the crowlings rule to determine appropriate dose of a certain medicine adult dosage is 500mg the age of the child is 7 years old what would be the correct dosage and than 300mg adult and 60 mg child to calculate childs age
d=D(age+1)/24
It is a simple math issue. I will do the second for you.
d=D(age+1)/24
24d/D = age+1
age=24d/D -1= 24*60mg/300mg -1=24/5 -1=about 5years old
To determine the appropriate dosage for a child using the Crowling's rule, you need to know the adult dosage and the age of the child. The Crowling's rule states that the child's dose can be calculated by dividing the child's age (in years) by the sum of the child's age and 12, and then multiplying it by the adult dosage.
Let's calculate the correct dosage for the given ages:
1. Child's age: 7 years old
Adult dosage: 500mg
To calculate the child's dosage, use the Crowling's rule formula:
Child's dose = (child's age / (child's age + 12)) * adult dosage
Plug in the values:
Child's dose = (7 / (7 + 12)) * 500mg
Now let's calculate:
Child's dose = (7 / 19) * 500mg
Child's dose = 0.3684 * 500mg
Child's dose ≈ 184.2mg
Therefore, for a 7-year-old child, the correct dosage would be approximately 184.2mg.
2. Child's age: Unknown
Adult dosage: 300mg
Child's dose: 60mg
To calculate the child's age, rearrange the Crowling's rule formula and solve for the child's age:
Child's age = (child's dose / adult dosage) * (child's age + 12)
Plug in the values:
60mg = (300mg / (child's age + 12)) * (child's age + 12)
Cross-multiply:
60mg * (child's age + 12) = 300mg * (child's age + 12)
Expand the equation:
60mg * child's age + 720mg = 300mg * child's age + 3600mg
Rearrange the equation:
60mg * child's age - 300mg * child's age = 3600mg - 720mg
-240mg * child's age = 2880mg
Divide both sides by -240mg:
child's age = 2880mg / -240mg
child's age = -12
The calculated child's age is -12, which is not a valid age. It seems there might have been a mistake in the given information or the computation. Please double-check the values provided to determine the correct child's age.