If a victim has 1/3 of their back burned, what is the total percentage burned considering all affected areas?

To determine the total percentage of a victim's body that is burned, it is essential to understand how body surface area is estimated when calculating burns. The Rule of Nines is commonly used in this regard. According to this method, different regions of the body represent specific percentages of total body surface area (TBSA).

The back of an adult is typically divided as follows: the entire back accounts for about 18% of TBSA. Therefore, when a victim has 1/3 of their back burned, you calculate the burned area by finding 1/3 of 18%. This can be done through multiplication:

1/3 of 18% = 18% / 3 = 6%.

This means that the victim has sustained burns covering 6% of their total body surface area through the burned section of their back alone.

However, in the context of this question, the total area burned in various scenarios or percentages of TBSA is likely reflective of adding further areas, if applicable, but given, there is no indication of additional burn areas stated in the question, it reaffirms the burned percentage is solely from the back.

In assessing the choices, if we look at the correct answer choice of 15%, this