PAEA Surgery End Of Rotation (EOR) Practice Exam

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Prepare for the PAEA Surgery EOR Exam. Test your knowledge with flashcards and multiple choice questions, with hints and detailed explanations. Gear up for your surgical rotation success!

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What percentage of body surface area do the anterior and posterior trunk each account for in the Rule of 9's?

The correct answer is: 18%

In the Rule of 9's, which is used to estimate the total body surface area (TBSA) affected by burns, the anterior and posterior trunk each account for 18% of the body surface area. This method divides the body into sections that are approximately 9% (or multiples thereof) of the total body surface area to make quick and efficient calculations for burn management. The anterior trunk (the front of the torso) constitutes 18%, and similarly, the posterior trunk (the back of the torso) also constitutes an additional 18%. When combined, both the anterior and posterior trunk together account for a total of 36% of the body surface area. Therefore, while the anterior trunk is 18%, the posterior trunk holds the same value, and thus the statement regarding the percentage for each section is accurately represented by the option provided.