What percentage of body surface area is considered burned if both the entire anterior torso and the front and back of both lower extremities are affected?

When calculating the total body surface area (TBSA) affected by burns in adult patients, the "Rule of Nines" is often utilized as a quick reference. According to this method, the body is divided into sections that represent approximately 9% (or multiples thereof) of the total body surface.

In this scenario, we assess the burns on both the anterior torso along with the front and back of both lower extremities.

• The entire anterior torso accounts for 18% of the TBSA (9% for the front of the torso and 9% for the back).

• Each lower extremity is classified as 18% of the TBSA. Since both the front and back of the lower extremities are burned, we need to account for both sides, which gives us 36% for the lower extremities (18% for the front of one leg, plus 18% for the back, multiplied by two legs).

Now, when we combine these areas:

• Anterior torso burns: 18%

• Front and back of both lower extremities: 36%

Adding these percentages together results in a total of 54% TBSA burned. This calculation confirms that the accurate representation of the burn area is 54