Question

A 40 y/o man has burns to the entire head, anterior chest, and both anterior upper extremities. Using the adult Rule of Nines, what percentage of his total body surface area has been burned?

A. 0.18
B. 0.36
C. 0.27
D. 0.45

Answer 1

The adult Rule of Nines is a method used to estimate the percentage of total body surface area burned in adults. According to this rule, the head is assigned 9%, the anterior chest is assigned 18%, and each anterior upper extremity is assigned 9%. In this case, the man has burns to the entire head, anterior chest, and both anterior upper extremities, resulting in a total of 45%. Therefore, the correct answer is D. 0.45.

Step-by-step explanation:

The adult Rule of Nines is a method used to estimate the percentage of total body surface area burned in adults. According to this rule, the head is assigned 9% of the total body surface area, the anterior chest is assigned 18%, and each anterior upper extremity is assigned 9%.

In this case, the man has burns to the entire head (9%), anterior chest (18%), and both anterior upper extremities (9% + 9%). Adding these percentages together gives a total of 45%. Therefore, the correct answer is D. 0.45.