NORCET 3 - 2022 (Shif…: By the use of Wallace rule of nine, which parameters can be calculated in a burn patient?

NORCET 3 - 2022 (Shift-2)

Medical & Surgical Nursing

Easy

Appeared in: NORCET 3 - 2022 (Shift-2)

Explanation

The Wallace Rule of Nines is a rapid assessment tool used to estimate the percentage of total body surface area (%TBSA) affected by burns in adults.
It works by dividing the major areas of the adult body into regions that are multiples of 9%, allowing for a quick calculation of the burn's extent.
This estimation is a critical first step for guiding fluid resuscitation strategies and determining the overall severity of the burn injury.
The term 'Estimated burn surface area percentage' is the most accurate and complete description of the parameter calculated by this rule.

Option A: Burn depth (e.g., superficial, partial-thickness, full-thickness) is determined by clinical examination of the wound's appearance, sensation, and capillary refill, not by a surface area calculation.
Option B: This phrasing is imprecise and incomplete. The rule does not calculate the total body surface area itself, but rather the percentage of that area which has been burned.
Option C: The Rule of Nines does not directly calculate fluid requirements. It provides the %TBSA value, which is then used in a separate formula (like the Parkland formula) to calculate the necessary fluid volume for resuscitation.

Clinical Relevance

Nursing practice connection: Use the key finding related to Application of the Wallace Rule of Nines in burn assessment to guide bedside assessment, documentation, and the next nursing action.
A rapid and reasonably accurate TBSA estimation using the Rule of Nines is crucial for initiating appropriate and timely fluid resuscitation, which is vital to prevent burn shock in patients with significant burns.
The Rule of Nines is designed for adults and older children (>14 years). For infants and young children, the Lund-Browder chart is the preferred method as it accounts for their different body proportions (e.g., a proportionally larger head and smaller legs).
What if? If the patient were a 2-year-old child, using the adult Rule of Nines would lead to an inaccurate TBSA estimation. A nurse must use the Lund-Browder chart to obtain a correct percentage, ensuring the child receives the appropriate volume of resuscitation fluid.

How to Approach the Question

First, identify the core concept of the question, which is the specific purpose of the 'Wallace Rule of Nines' in the context of a burn patient.
Recall or deduce that this rule is a well-known tool for assessing the extent or size of a burn.
Evaluate each option against this primary function.
Eliminate Option A, as burn depth is a different assessment from burn area.
Eliminate Option C, as fluid calculation is a subsequent step that uses the burn area estimation but is not the estimation itself.
Compare the remaining options, B and D. Recognize that Option D ('Estimated burn surface area percentage') is more precise and complete than Option B ('Percentage of total body of surface area'). The rule provides an estimate of the burned area, making D the best description.

Concept Tested & Keywords

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