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Rule of Nines Formula:
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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.
The calculator uses the Rule of Nines formula:
Standard Body Part Percentages:
Explanation: The Rule of Nines provides a quick way to estimate burn extent for fluid resuscitation and treatment planning.
Details: Accurate burn percentage estimation is crucial for determining fluid resuscitation needs, predicting mortality risk, guiding treatment decisions, and triaging patients to appropriate care facilities.
Tips: Enter the percentage of each body part affected by burns. Use decimal values for partial burns. Ensure total does not exceed 100% of body surface area.
Q1: What is the Rule of Nines used for?
A: It's primarily used for quick estimation of burn extent in emergency situations to guide fluid resuscitation and determine burn severity.
Q2: How accurate is the Rule of Nines?
A: It provides a rapid estimate but may be less accurate in children and obese patients. More precise methods like the Lund-Browder chart are used for detailed assessment.
Q3: What constitutes a major burn?
A: Generally, burns covering >20% TBSA in adults or >10% in children/elderly, or burns involving specific critical areas like face, hands, feet, or perineum.
Q4: How does burn percentage affect fluid resuscitation?
A: The Parkland formula uses burn percentage to calculate fluid requirements: 4 mL × kg × % TBSA burned in first 24 hours.
Q5: Are there different rules for children?
A: Yes, children have different body proportions. The Rule of Nines is modified for pediatric patients with larger head percentages and smaller leg percentages.