Total body surface area (TBSA) is a calculation that measures the extent of damage caused by burn injury. The Rule of Nines is used to estimate the extent of burn damage by assigning certain body parts with pre-determined TBSA.
According to the Rule of Nines, the head accounts for 9% TBSA.
According to the Rule of Nines, the anterior torso, including the chest, accounts for 18% TBSA.
According to the Rule of Nines, the anterior torso, including the abdomen, accounts for 18% TBSA.
According to the Rule of Nines, the posterior torso, including the upper back and lower back, accounts for 18% TBSA.
According to the Rule of Nines, the posterior torso, including the lower back and upper back, accounts for 18% TBSA.
According to the Rule of Nines, the posterior of each leg accounts for 9% TBSA.
According to the Rule of Nines, the anterior of each leg accounts for 9% TBSA.
According to the Rule of Nines, the entirety of each arm accounts for 9% TBSA. The front of one arm is considered 4.5% TBSA, while the back of one arm is considered 4.5% TBSA.
According to the Rule of Nines, the genitalia accounts for 1% TBSA.
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