Body Surface Area Calculator Infant

Haycock Formula for Infants:

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

Body Surface Area (m²):

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1. What is Infant Body Surface Area Calculator?

Definition: This calculator estimates the body surface area (BSA) of infants using the Haycock formula based on weight and height measurements.

Purpose: It helps medical professionals determine medication dosages, nutritional requirements, and other clinical parameters for infants.

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 formula provides an accurate estimation of BSA specifically for infants and children.

3. Importance of BSA Calculation

Details: Accurate BSA calculation is crucial for proper medication dosing, chemotherapy protocols, fluid management, and nutritional support in pediatric care.

4. Using the Calculator

Tips: Enter the infant'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 is specifically validated for infants and children, providing more accurate results than adult formulas.

Q2: What age range is this calculator appropriate for?
A: This calculator is most accurate for infants and children up to about 12 years old.

Q3: How should I measure the infant's height?
A: For infants, measure length while lying down (crown-heel length) using an infantometer.

Q4: Why is BSA important in pediatrics?
A: Many medications and treatments are dosed based on BSA rather than weight alone for better accuracy.

Q5: Can I use this for premature infants?
A: While the formula can be used, consult with a neonatologist as extremely premature infants may require special considerations.