Which of the following represents the burn percentage for the anterior and posterior of both arms using the Rule of Nines?
9%
12%
36%
18%
The Correct Answer is D
A. 9% represents the total surface area of one arm (anterior and posterior combined), not both arms.
B. 12% is not a correct calculation based on the Rule of Nines.
C. 36% represents a much larger area, such as the entire trunk (anterior and posterior), not just the arms.
D. According to the Rule of Nines, each arm accounts for 9% of total body surface area (4.5% anterior + 4.5% posterior). Therefore, both arms (anterior and posterior) equal 18% total
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The use of a pressure bag is standard practice, not situation-dependent.
B. True. The flush solution for an arterial line must be infused using a pressure bag (typically at 300 mmHg) to maintain patency of the line and prevent blood backflow or clot formation.
C. Without a pressure bag, the arterial line is at risk of occlusion and inaccurate pressure readings.
D. This is a standard nursing practice and does not require a specific doctor’s order
Correct Answer is A
Explanation
Each leg (front + back) accounts for 18% TBSA × 2 legs = 36%.
Each arm (front + back) accounts for 9% TBSA × 2 arms = 18%.
Total burned TBSA = 36% (legs) + 18% (arms) = 54%.
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