1. What is the Pediatric Rule of Nines?

The Pediatric Rule of Nines is a method used to estimate the total body surface area (TBSA) affected by burns in children. It differs from the adult Rule of Nines because children have proportionally larger heads and smaller legs.

2. How Does the Calculator Work?

The calculator uses the Pediatric Rule of Nines formula:

Where each body part represents:

• Head — 18% of TBSA
• Each arm — 9% of TBSA
• Each leg — 18% of TBSA
• Front torso — 18% of TBSA
• Back torso — 18% of TBSA
• Genitals — 1% of TBSA

Explanation: The percentages account for the proportional differences in body surface area in children compared to adults.

3. Importance of TBSA Calculation

Details: Accurate TBSA estimation is crucial for determining burn severity, guiding fluid resuscitation, and making decisions about patient transfer to burn centers.

4. Using the Calculator

Tips: Enter the percentage of each body part that is burned. For partial burns, estimate the percentage of the body part affected (e.g., if half of the front torso is burned, enter 9%).

5. Frequently Asked Questions (FAQ)

Q1: How does this differ from adult Rule of Nines?
A: Children have larger heads (18% vs 9% in adults) and smaller legs (18% each vs 18.5% each in adults) proportionally.

Q2: What age range is this calculator for?
A: This is typically used for children under 14 years old. For infants, the Lund-Browder chart may be more accurate.

Q3: What constitutes a major burn in children?
A: Generally, >10% TBSA in children requires specialized burn care, and >20% is considered critical.

Q4: How accurate is this method?
A: It provides a quick estimate. For more precise measurement, especially with scattered burns, the Lund-Browder chart is preferred.

Q5: What about palmar surface method?
A: The patient's palm (including fingers) represents about 1% of TBSA and can be used for small or scattered burns.