In the Rule of Nines, what percentage of the body does the back cover?

In the Rule of Nines, which is a tool used in the assessment of burn injuries to estimate the total body surface area (TBSA) affected by burns, the back accounts for 18% of the total body surface area. This rule divides the body's surface into sections, each representing approximately 9% or multiples of 9% to facilitate quick calculations in emergency situations.

The front and back of the torso each account for 18%, while the head is considered 9%, and each arm is 9%. Therefore, when specifically addressing the back, it is essential to recognize that the back of an adult human body is indeed designated as 18% of the TBSA in this assessment tool, allowing healthcare professionals to gauge the severity and extent of burn injuries effectively.