Florida State Paramedic Practice Exam

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What percentage of the body did the chest and abdomen account for in the Rule of Nines for adults and children?

The correct answer is: 18

The Rule of Nines is a method used to estimate the total body surface area affected by burns. In adults, the chest and abdomen each account for 18% of the total body surface area when combined. This is because the chest represents 9% and the abdomen represents another 9%. Therefore, when you total the percentages from both regions, you arrive at 18%. In children, the percentage distribution differs from that of adults—this is mainly due to their proportionately larger head size. However, for adults specifically, the total contribution of the chest and abdomen to the overall body surface area burned is consistently recognized as 18%. Understanding the Rule of Nines is crucial for paramedics when assessing burn injuries and determining treatment plans.