Question

Which of the following formula for calculating child dose is based on body weight:

• A. Clark’s formula
• B. Fried’s formula
• C. Young’s formula
• D. Dilling's formula

Hint:

Use Clark’s formula for dose calculations based on body weight to ensure accurate and safe dosing for children.

Answer 1

The Correct Option is A

Step 1: Understanding Clark’s formula. Clark’s formula calculates the child’s dose of a medication based on the child’s body weight, ensuring accurate dosing to avoid toxicity or underdosing. The formula is: \[ \text{Child’s Dose} = \frac{\text{Weight of the child (kg)}}{70} \times \text{Adult Dose} \] or, in pounds: \[ \text{Child’s Dose} = \frac{\text{Weight of the child (lb)}}{150} \times \text{Adult Dose}. \] 

Step 2: Explanation of other formulas. 
- (B) Fried’s formula: Based on the child’s age in months. 
- (C) Young’s formula: Based on the child’s age in years. 
- (D) Dilling’s formula: Also based on the child’s age in years, specifically for older children. 

Conclusion. Since Clark’s formula considers the child’s body weight for dose calculation, option (A) is correct.