Body Surface Area Calculator Child

Haycock Formula for BSA:

\[ BSA = 0.024265 \times W^{0.5378} \times H^{0.3964} \]

Body Surface Area (m²):

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1. What is Body Surface Area (BSA) Calculator for Children?

Definition: This calculator estimates a child's body surface area using the Haycock formula based on weight and height measurements.

Purpose: BSA is used in medical settings for proper medication dosing, chemotherapy protocols, and physiological measurements.

2. How Does the Calculator Work?

The calculator uses the Haycock formula:

\[ BSA = 0.024265 \times W^{0.5378} \times H^{0.3964} \]

Where:

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

Explanation: The Haycock formula provides accurate BSA estimation for children and is widely used in pediatric medicine.

3. Importance of BSA Calculation

Details: Accurate BSA measurement is crucial for proper drug dosing, nutritional assessment, and burn treatment in pediatric patients.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why use Haycock formula instead of others?
A: The Haycock formula was specifically developed to be accurate across all ages, especially for children.

Q2: How accurate is this calculator?
A: The Haycock formula has been validated in numerous studies and is accurate to within 1-2% for most children.

Q3: What's the age range for this calculator?
A: While designed for children, the Haycock formula works well for all ages from infants to adults.

Q4: How do I convert pounds to kilograms?
A: Divide pounds by 2.205 (1 kg = 2.205 lbs). For inches to cm, multiply by 2.54 (1 inch = 2.54 cm).

Q5: When is BSA used in medicine?
A: BSA is used for chemotherapy dosing, renal function assessment, and determining nutritional needs.