A 32-year-old firefighter received second-degree burns on the anterior and posterior trunk and on both arms. Using the rule of nines, which of the following estimates best approximates the percentage of burn surface area?
36%
54%
63%
44%
The Correct Answer is B
A. The anterior and posterior trunk account for 36% total (18% each), and both arms (9% each) account for an additional 18%, totaling 54%.
B. The calculation for the burn surface area would be 36% (trunk) + 18% (both arms) = 54%, which is correct.
C. 63% is too high based on the rule of nines calculations.
D. 44% underestimates the total burn surface area considering both trunk and arms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
A. Poor gastric perfusion can contribute to gastric issues but is not the most common cause of acute gastritis.
B. The ingestion of irritants like aspirin, alcohol, or chemicals is a leading cause of acute gastritis, leading to inflammation of the gastric mucosa.
C. While excess stomach acid can contribute to gastritis, it is typically not the sole cause of acute cases.
D. H. pylori infection is associated with chronic gastritis rather than acute gastritis specifically.
Correct Answer is B
Explanation
A. The vascular response initially increases permeability to allow essential cells and substances to reach the site of injury, rather than becoming impermeable.
B. Dilating blood vessels increases blood flow to the injured area, facilitating the delivery of immune cells and nutrients necessary for healing.
C. Limited perfusion contradicts the purpose of the vascular response, which is to enhance blood flow to the injury.
D. While blood vessels can constrict initially to minimize blood loss, the vascular response overall is characterized by dilation to promote healing.
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