What is the approximate percentage of body surface area covered by the anterior trunk in the rule of nines?

In the context of the Rule of Nines, which is a method used to estimate the total body surface area affected by burns, the percentage of body surface area covered by the anterior trunk is specifically designated as 18%. This figure is derived from dividing the adult body into sections that each represent approximately 9% or multiples of 9% of the total body surface area.

The anterior trunk includes the chest and abdomen, and as part of the overall body assessment for burn injuries, this estimation is crucial for determining treatment protocols, fluid resuscitation needs, and overall patient management. The clarity of the Rule of Nines helps healthcare providers quickly and accurately assess burn severity and plan appropriate interventions.