Which TBSA assessment method is most accurate for children and why?

• A. The Lund-Browder chart is most accurate in children because it uses age-specific body proportions
• B. The Rule of Nines is most accurate in children
• C. The Lund-Browder chart is inaccurate in infants
• D. The Rule of Nines accounts for age-specific proportions

Answer: (A)

In children, body proportions change as they grow, so a burn size estimate must reflect age-specific anatomy. The Lund-Browder chart does exactly that by providing age-based percentages for each body region, recognizing that infants have relatively larger heads and smaller legs and that proportions shift with age. This makes it far more accurate for kids than a fixed scheme.

The Rule of Nines uses adult proportions with fixed percentages for each region, so it doesn’t adjust for a child’s age or developmental stage. That leads to systematic over- or underestimation of burn size in pediatric patients. The Lund-Browder chart isn’t inaccurate in infants; in fact, it’s designed to be accurate across infancy and childhood by changing with age. It also isn’t true that the Rule of Nines accounts for age-specific proportions.

So, the most accurate method for children is the Lund-Browder chart because its age-specific body proportions provide a true-to-life estimate of TBSA in pediatric patients.