Which solution is commonly used for fluid replacement in burn patient?

AIIMS CRE 2025

Medical Surgical Nursing

Easy

Appeared in: AIIMS CRE 2025

Explanation

Ringer's lactate is the preferred isotonic crystalloid solution for initial fluid resuscitation in burn patients.
Its electrolyte composition (sodium, potassium, calcium, chloride) is similar to that of blood plasma, making it a 'balanced' solution.
The lactate in the solution is metabolized by the liver into bicarbonate, which helps buffer the metabolic acidosis commonly seen in severe burns and shock.
It effectively expands intravascular volume to treat the hypovolemia caused by fluid shifting out of the blood vessels after a burn.

Option A: Distilled water is a severely hypotonic solution. Administering it intravenously would cause a rapid influx of water into red blood cells, leading to their rupture (hemolysis) and potentially fatal cerebral edema.
Option C: 5% dextrose is avoided during initial burn resuscitation. The stress of a major burn causes hyperglycemia, and administering a glucose-containing solution would worsen it. Furthermore, as the dextrose is metabolized, the solution becomes hypotonic, which is not ideal for volume replacement.
Option D: While Normal Saline (0.9% NaCl) is isotonic, the large volumes needed for burn resuscitation can cause hyperchloremic metabolic acidosis, worsening the patient's acid-base imbalance. The added glucose also poses a risk for hyperglycemia.

Visual 1: Infographic: Comparing the electrolyte composition of Ringer's Lactate, 0.9% Normal Saline, and human plasma to illustrate why RL is considered a balanced solution for burn resuscitation.
Visual 2: Diagram: A visual representation of the Parkland (Baxter) formula (4 mL x kg x %TBSA) used for calculating fluid requirements in burn patients, showing the infusion schedule over 24 hours.

Clinical Relevance

Nursing practice connection: Use the key finding related to Fluid resuscitation in burn patients to guide bedside assessment, documentation, and the next nursing action.
The nurse's primary role in burn care is meticulous fluid management. Accurately calculating, administering, and monitoring the response to fluid resuscitation is critical to patient survival and preventing organ failure.
Monitoring urine output is the gold standard for assessing the adequacy of resuscitation. A rate below 0.5 mL/kg/hr indicates insufficient fluid, while a very high rate may suggest over-resuscitation.
What if? If a burn patient has known severe liver disease, the nurse should anticipate that the physician might choose an alternative to Ringer's lactate (like Plasma-Lyte or Normal Saline). This is because a failing liver cannot effectively convert lactate to bicarbonate, negating one of its key benefits and potentially leading to lactic acidosis.

How to Approach the Question

First, identify the patient's condition: a burn patient requiring fluid replacement. This signals a need for large-volume resuscitation.
Recall the pathophysiology of major burns: massive fluid shifts from the vascular to the interstitial space, leading to hypovolemia and metabolic acidosis.
Evaluate the options based on their properties and how they address the patient's needs.
Eliminate distilled water as it is dangerously hypotonic for IV use.
Eliminate dextrose-containing solutions for initial resuscitation due to the risk of hyperglycemia.
Compare the two isotonic crystalloids: Ringer's lactate and Normal Saline. Recognize that Ringer's lactate is preferred because it is a balanced solution that also helps correct acidosis, whereas large volumes of Normal Saline can cause hyperchloremic metabolic acidosis.

Concept Tested & Keywords

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