Question

The adult dose of a drug is 200mg. What is the dose for a child of 12 years as per Dilling’s formula?

• A. 100mg
• B. 150mg
• C. 120mg
• D. 80mg

Hint:

When using Dilling’s formula, remember to apply the child’s age relative to the adult dose to calculate the appropriate pediatric dose.

Answer 1

The Correct Option is C

Step 1: Understanding Dilling’s formula.
Dilling's formula is used to calculate the child's dose based on the adult dose, using the child’s age and the standard age ratio. The formula is: \[ \text{Child's Dose} = \frac{\text{Age of child}}{(Age of child + 12)} \times \text{Adult Dose} \] In this case, the adult dose is 200mg and the child's age is 12 years.
Step 2: Applying the formula.
\[ \text{Child's Dose} = \frac{12}{(12 + 12)} \times 200 = \frac{12}{24} \times 200 = 0.5 \times 200 = 120 \text{ mg} \] Step 3: Conclusion.
The correct answer is (C) 120mg as per Dilling's formula.