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:

• 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 fluid resuscitation needs, prognosis, and treatment planning in pediatric burn patients.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

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

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

Q3: How do I estimate partial burns?
A: For irregular burns, the "palm method" can help - the patient's palm (including fingers) represents about 1% of their TBSA.

Q4: What about deep vs superficial burns?
A: This calculator estimates surface area only. Depth of burn should be assessed separately as it affects treatment decisions.

Q5: When is this calculation most critical?
A: For burns >10% TBSA in children, as this typically requires formal fluid resuscitation and hospital admission.