Enlisted Expeditionary Warfare Specialist (EXW) Practice Test

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What is used to give a rough estimate of the surface area affected by burns?

Rules of 3
Tape Measure
Rule of Nines
Second Degree

The correct answer is: Rule of Nines

The Rule of Nines is a method used to quickly estimate the total body surface area affected by burns, particularly in adults. This system divides the body into sections, with each section representing a percentage of the body’s total surface area. For instance, the head and neck account for 9%, each arm also for 9%, the anterior and posterior torso for 18% each, each leg for 18%, and the genital area for 1%. This allows medical professionals to assess burns rapidly and determine the severity of the injuries, which is crucial for guiding treatment decisions and fluid resuscitation. Other methods like the Rules of 3 or a tape measure are either less commonly used for such estimations or not suitable for quick assessments in emergency situations. The term "Second Degree" refers to a classification of burns based on their depth and does not pertain to a method of estimating surface area. Thus, the Rule of Nines remains the standard for estimating burn surface area effectively in clinical settings.