An adult client arrives in the emergency department with burns to both entire legs and the perineal area. Which of the following fluid would be started by on duty nurses?

1. A

   Ringer lactate

2. B

   Normal saline 0.9%

3. C

   DNS

4. D

   Normal saline 0.45% with dextrose 10%

Appeared in: NORCET -4 , 2023

Explanation

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• Ringer lactate is the preferred isotonic crystalloid for initial fluid resuscitation in major burn patients.
• Its electrolyte composition is the most similar to the body's extracellular fluid, which effectively replaces lost intravascular volume.
• The lactate in the solution is metabolized by the liver into bicarbonate, which helps to counteract the metabolic acidosis that commonly develops in burn shock.
• Major burn resuscitation guidelines, including the widely used Parkland (Baxter) formula, specifically recommend Ringer lactate.

Why Other Options Were Wrong

• Option B: While Normal Saline is an isotonic solution, administering the large volumes required for burn resuscitation can cause hyperchloremic metabolic acidosis due to its high chloride content.
• Option C: Dextrose-containing solutions are avoided in the initial 24 hours as burn patients are often hyperglycemic due to the stress response. The added glucose can worsen hyperglycemia and cause an osmotic diuresis, exacerbating dehydration.
• Option D: This is a hypertonic solution and is not suitable for initial large-volume resuscitation in burn shock. It would not effectively restore intravascular volume and could worsen cellular dehydration and electrolyte imbalances.

Related Visual

• Visual 1: Diagram: The 'Rule of Nines' chart for adults. This visual helps in estimating the Total Body Surface Area (TBSA) of the burn, which is a critical component for calculating fluid requirements.

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Fluid resuscitation in major burn injuries as background academic context rather than a clinical decision trigger.
• Accurate and timely fluid resuscitation is the most critical nursing intervention in the first 24-48 hours to prevent burn shock, a life-threatening complication caused by massive fluid shifts leading to organ hypoperfusion.
• Nurses must continuously monitor urine output (goal: 30-50 mL/hr for adults) as the primary indicator of adequate organ perfusion and successful resuscitation. It is a more reliable guide than vital signs alone.
• What if? If the burn patient had pre-existing severe liver failure, Ringer Lactate might be used cautiously or avoided. The liver's inability to metabolize lactate to bicarbonate could worsen acidosis, making Normal Saline a potential alternative despite its own risks.

How to Approach the Question

• Identify the patient's condition: A major burn injury, as indicated by the large surface area involved (both legs and perineum).
• Recall the immediate life-threatening risk associated with major burns: Hypovolemic shock (burn shock) due to massive fluid loss from damaged capillaries.
• Determine the priority intervention: Rapid fluid resuscitation to restore intravascular volume and maintain organ perfusion.
• Access knowledge of standard fluid resuscitation protocols for burns, such as the Parkland formula, which specifies the type of fluid to be used.
• Evaluate the options: Compare the composition of each fluid and its physiological effect in the context of burn shock. Select the fluid that is isotonic, replaces lost electrolytes, and helps buffer acidosis without causing complications like hyperglycemia or significant acid-base disturbances.

Concept Tested & Keywords

• Concept Tested: Fluid resuscitation in major burn injuries
• Stem keywords: adult client, emergency department, burns, both entire legs, perineal area, fluid
• Lead-in keywords: Which of the following
• Clinical cues: Burns to both entire legs and the perineal area signifies a major burn (approximately 37% TBSA using the Rule of Nines), requiring aggressive fluid resuscitation to prevent burn shock.
• Negative lead-in flag: false

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