Integumentary SystemDifficulty 3/5
Using the rule of nines for an adult, what percentage of total body surface area is burned when the entire anterior trunk and one entire arm are involved?
- A22.5 percent, counting the anterior trunk as 18 and half an arm
- B18 percent, counting the trunk as 9 and the arm as 9
- C27 percent, counting the anterior trunk as 18 and the arm as 9
- D36 percent, counting the whole trunk as 27 and the arm as 9
Show answer and rationale
Correct: C. In the adult rule of nines the anterior trunk is 18 percent and an entire upper limb is 9 percent, giving 27 percent.
- B — The anterior trunk is 18 percent, not 9.
- D — The whole trunk anterior and posterior is 36 percent, not 27.
- A — An entire arm is 9 percent, not 4.5.