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

RRB Nsg. Superintendent-2026 (Shift -2nd)

Medical & Surgical Nursing

Easy

Appeared in: RRB Nsg. Superintendent-2026 (Shift -2nd)

Explanation

Ringer's lactate is the crystalloid fluid of choice for initial burn resuscitation.
Its electrolyte composition is most similar to that of blood plasma, making it effective for replacing lost intravascular fluid.
The lactate in the solution is metabolized by the liver into bicarbonate, which helps to correct the metabolic acidosis that frequently occurs in severe burns.
Unlike normal saline, large-volume resuscitation with Ringer's lactate does not carry the risk of causing hyperchloremic metabolic acidosis.

Option A: Distilled water is a dangerously hypotonic solution. If administered intravenously, it would cause rapid fluid movement into red blood cells, leading to hemolysis (cell rupture) and severe electrolyte imbalances.
Option C: 5% dextrose in water (D5W) is initially isotonic but becomes hypotonic once the body metabolizes the dextrose. It does not effectively expand the intravascular volume and is not suitable for resuscitation. The added sugar can also worsen the hyperglycemia caused by the stress of the burn injury.
Option D: While normal saline (0.9% NaCl) is an isotonic solution, administering the large volumes required for burn resuscitation can lead to hyperchloremic metabolic acidosis. The addition of glucose is also inappropriate during the initial phase due to stress-induced hyperglycemia.

Visual 1: Chart: Comparison of IV Fluid Compositions - A table showing the electrolyte concentrations (Na+, K+, Cl-, Ca++, buffer) and osmolarity of Ringer's lactate, Normal Saline, and D5W compared to human plasma.
Visual 2: Diagram: Fluid Shifts in Burn Injury - An infographic illustrating how capillary leak causes fluid to move from the intravascular space to the interstitial space, leading to edema and hypovolemic shock.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Fluid resuscitation in burn patients as background academic context rather than a clinical decision trigger.
Accurate fluid resuscitation is the cornerstone of early burn management and is critical for preventing burn shock and subsequent organ failure.
Nurses are responsible for calculating fluid requirements using formulas like the Parkland (Baxter) formula (4 mL x kg x %TBSA burn), administering the fluid at the correct rate (half in the first 8 hours, rest over 16 hours), and titrating the rate based on the patient's response.
The most important parameter for monitoring the adequacy of fluid resuscitation is urine output, with a target of 0.5-1 mL/kg/hr in adults. This is a more reliable indicator than blood pressure or heart rate alone.

How to Approach the Question

First, identify the core clinical problem in the question: fluid replacement for a specific condition, which is a burn injury.
Recall the pathophysiology of major burns, specifically the massive fluid shift from the intravascular to the interstitial space, leading to hypovolemic shock and metabolic acidosis.
Evaluate the options based on their properties and suitability for correcting this specific pathophysiological state.
Remember that the ideal resuscitation fluid should be isotonic, have an electrolyte profile similar to plasma, and ideally help buffer acidosis.
Eliminate options that are clearly incorrect: Distilled water is hypotonic and dangerous. D5W becomes hypotonic and is not a resuscitation fluid.
Compare the two most plausible options, Ringer's lactate and Normal Saline. Recall that large volumes of Normal Saline can cause hyperchloremic metabolic acidosis, making Ringer's lactate the preferred choice in burn care.

Concept Tested & Keywords

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