1. What is Pediatric BSA Calculator?

Definition: This calculator estimates body surface area (BSA) for pediatric patients using the Haycock formula.

Purpose: BSA is used to calculate proper medication dosages, chemotherapy regimens, and for various clinical assessments in children.

2. How Does the Calculator Work?

The calculator uses the Haycock formula:

Where:

• \( BSA \) — Body Surface Area (square meters)
• \( W \) — Weight (kilograms)
• \( H \) — Height (centimeters)

Explanation: The formula provides a more accurate BSA estimation for pediatric patients compared to adult formulas.

3. Importance of BSA Calculation

Details: Accurate BSA calculation is critical for proper drug dosing, fluid management, and nutritional support in pediatric patients.

4. Using the Calculator

Tips: Enter the patient's weight in kilograms and height in centimeters. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why use Haycock formula for pediatrics?
A: The Haycock formula was specifically developed for and validated in pediatric populations, providing better accuracy than adult formulas.

Q2: What's the age range for this calculator?
A: While most accurate for children, it can be used for patients of all ages.

Q3: How precise should measurements be?
A: For best results, measure weight to the nearest 0.1 kg and height to the nearest 0.5 cm.

Q4: Are there alternative BSA formulas?
A: Yes, other formulas include Mosteller, Du Bois, and Boyd, but Haycock is preferred for pediatrics.

Q5: When is BSA used vs. weight-based dosing?
A: BSA is typically used for chemotherapy, some antibiotics, and medications with narrow therapeutic windows.