A 65-year-old burn patient came to the emergency department. According to the rule of nines, his total burnt BSA is 64%. What is the burn percentage of the perineal area according to the rule of nines?

1. A

   18%

2. B

   9%

3. C

   2%

4. D

   1%

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

Listen in Hindi

• The Rule of Nines is a standardized method for the rapid estimation of Total Body Surface Area (TBSA) in adult burn victims.
• In this system, the body is divided into anatomical sections, each representing approximately 9% (or a multiple of 9%) of the TBSA.
• The perineal area, which includes the genitalia, is a small and distinct region assigned a value of 1%.

Why Other Options Were Wrong

• Option A: 18% is incorrect for the perineum. This value is assigned to much larger body areas.
• Option B: 9% is incorrect for the perineum. This value is assigned to moderately sized body areas.
• Option C: 2% is not a standard value used in the adult Rule of Nines.

Related Visual

Clinical Relevance

• Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing Estimation of burn percentage using the Rule of Nines in adults in acute care settings.
• Accurate TBSA calculation using the Rule of Nines is a critical nursing skill in emergency and critical care settings. It directly impacts the calculation for fluid resuscitation, which is vital for preventing life-threatening burn shock.
• Nurses use the TBSA percentage to implement the Parkland formula (4 mL x kg x %TBSA) to determine the volume of IV fluids needed in the first 24 hours, preventing both under-resuscitation (leading to shock and organ failure) and over-resuscitation (leading to pulmonary edema and compartment syndrome).
• A patient with a 64% TBSA burn requires immediate transfer to a specialized burn center for multidisciplinary care, including airway management, infection control, wound care, and nutritional support.

How to Approach the Question

• First, identify the key concept in the question, which is the 'Rule of Nines' for burn assessment.
• Note the patient's age (65 years old). This confirms that the standard adult Rule of Nines is the correct tool to use.
• The question asks for the specific percentage assigned to the 'perineal area'.
• Recall the components of the Rule of Nines. Mentally picture the diagram: Head and neck (9%), each arm (9%), anterior trunk (18%), posterior trunk (18%), each leg (18%).
• Remember the final, smallest component of the rule: the perineum is allocated 1%.
• Compare this recalled value (1%) with the given options and select the matching one.

Concept Tested & Keywords

• Concept Tested: Estimation of burn percentage using the Rule of Nines in adults.
• Stem keywords: burn patient, Rule of Nines, BSA, perineal area
• Lead-in keywords: What is the burn percentage
• Clinical cues: 65-year-old patient: This indicates that adult assessment rules, like the Rule of Nines, are appropriate.
• Clinical cues: 64% total burnt BSA: This signifies a major burn, highlighting the critical need for accurate assessment and immediate, aggressive fluid resuscitation.

Question ID

QfaOTsa34s7Pk9PSUfEGaG

Copy ID

Reference Book

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 693-695