Final answer:
The pediatric Rule of Nines indicates that a child's arm represents 9% of their total body surface area. This estimation helps in assessing burn injuries and guiding treatment decisions.
Step-by-step explanation:
According to the pediatric Rule of Nines, the child's arm represents 9% of their total body surface area (TBSA). This is a simplified system used by medical professionals to estimate the extent of burn injury on a child's body. In adults, each arm is usually considered to be approximately 9% TBSA as well, but the figures can be adjusted slightly in children due to their different body proportions, including a larger head and smaller limbs relative to their body size. The Rule of Nines is used to assess the severity of burns and to help guide treatment decisions and fluid resuscitation in burn victims.