Using the rule of nines, what percentage of body surface area does a burn on the face, entire right arm, and right anterior trunk represent?

To determine the percentage of body surface area affected by burns using the rule of nines, each area of the body is assigned a specific percentage. According to this rule, the entire head and neck (face) are considered to account for 9% of the total body surface area. The entire arm is assigned 9% as well, and when considering just the front of the trunk (the anterior portion), it corresponds to 18% (9% for the anterior chest and 9% for the abdomen).

In this case, you have burns on the face (9%), the entire right arm (9%), and the right anterior trunk (which is 9% for the anterior chest and 9% for the abdomen, totaling 18%). Adding these together gives you the total:

• Face: 9%

• Entire right arm: 9%

• Right anterior trunk: 18%

Adding these percentages together results in 9% + 9% + 18% = 36%. However, understanding the specific areas affected clarifies how the percentages are calculated.

Thus, the correct answer reflects that the total percentage of body surface area affected by burns on the face, entire right arm, and right anterior trunk is indeed