Pediatric Rule of Nines Formula:
From: | To: |
Definition: The Rule of Nines is a method to estimate the total body surface area (TBSA) affected by burns in children.
Purpose: It helps medical professionals quickly assess burn severity and guide fluid resuscitation and treatment decisions.
The calculator sums the percentages of burned areas according to the pediatric Rule of Nines:
Note: These percentages differ from adult calculations because children have proportionally larger heads and smaller legs.
Details: Accurate TBSA calculation is critical for:
Instructions: Enter the percentage burned for each body region. The calculator will sum all values to provide the total burn surface area percentage.
Tips: For partial burns to a region, estimate the percentage of that specific region affected (e.g., 4.5% for half of an arm).
Q1: Why is the pediatric Rule of Nines different?
A: Children have different body proportions than adults (larger heads relative to body size).
Q2: At what age should I switch to adult calculations?
A: Typically around age 14-15, or when the child's body proportions approximate adult proportions.
Q3: What about burns to the palms?
A: For small burns, the patient's palm (including fingers) represents about 1% of TBSA.
Q4: How accurate is this method?
A: It provides a quick estimate. For more precise measurements, use Lund-Browder charts.
Q5: What TBSA percentage is considered severe?
A: Generally, >10% TBSA in children requires hospital admission, >20% is major burns.