1. What is the Rule of Nines?

The Rule of Nines is a method used to estimate the total body surface area (TBSA) affected by burns. It divides the body into sections that represent 9% or multiples of 9% of the total body surface area, providing a quick way to assess burn severity.

2. How Does the Calculator Work?

The calculator uses the standard Rule of Nines percentages:

Standard percentages:

• Head: 9%
• Each Arm: 9%
• Chest: 9%
• Abdomen: 9%
• Upper Back: 9%
• Lower Back: 9%
• Each Leg: 18%
• Genitalia: 1%

Explanation: The calculator sums the percentages of all selected body regions to estimate the total burn surface area.

3. Importance of TBSA Calculation

Details: Accurate TBSA estimation is crucial for determining burn severity, guiding fluid resuscitation, planning treatment, and predicting patient outcomes in burn care.

4. Using the Calculator

Tips: Select all body regions that have been affected by burns. The calculator will automatically sum the percentages to give you the total body surface area affected.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the Rule of Nines?
A: While useful for quick estimation, the Rule of Nines is less accurate for children and obese patients. More precise methods like the Lund-Browder chart may be needed for these populations.

Q2: What TBSA percentage requires hospitalization?
A: Generally, burns covering more than 10-15% TBSA in adults often require hospitalization for proper fluid management and care.

Q3: How does the Rule of Nines differ for children?
A: Children have different body proportions, so modified rules exist where the head represents a larger percentage and legs a smaller percentage of TBSA.

Q4: When should I seek medical attention for burns?
A: Seek immediate medical attention for burns covering more than 10% TBSA, burns on face, hands, feet, or genitals, or any full-thickness burns.

Q5: Can this calculator be used for chemical or electrical burns?
A: While the Rule of Nines can estimate surface area, these burn types may have deeper tissue damage not apparent on the surface and require specialized medical evaluation.