SGPGI Nursing Officer…: Which of the following fluid would not be used in fluid resuscitation?

SGPGI Nursing Officer-2022

Medical & Surgical Nursing

Medium

Appeared in: SGPGI Nursing Officer-2022

Explanation

1/2 NS (0.45% Normal Saline) is a hypotonic solution, having a lower osmolality than blood plasma.
Administering a hypotonic solution for resuscitation causes a fluid shift from the intravascular space into the interstitial and intracellular spaces.
This fluid shift leads to a decrease in circulating blood volume, which can worsen hypotension and shock.
Due to this effect, hypotonic solutions are contraindicated for initial fluid resuscitation.
They are typically used for treating hypertonic dehydration (cellular dehydration) but only after blood pressure and tissue perfusion are stabilized with isotonic fluids.

Option A: DNS (Dextrose 5% in Normal Saline) is a hypertonic solution that does expand intravascular volume. However, it is generally not a first-line choice for initial resuscitation because the dextrose can lead to hyperglycemia, especially in critically ill patients, and can cause an osmotic diuresis.
Option B: RL (Ringer's Lactate) is an isotonic crystalloid solution and is one of the first-line fluids of choice for resuscitation in conditions like trauma, burns, and sepsis. It effectively expands the intravascular volume.
Option D: Albumin is a colloid solution that acts as a potent plasma volume expander. It is used in fluid resuscitation, although typically as a second-line agent after crystalloids have been administered, or in specific conditions like severe sepsis with hypoalbuminemia or large-volume paracentesis.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Intravenous Fluid Selection for Resuscitation as background academic context rather than a clinical decision trigger.
Choosing the correct IV fluid is a critical nursing responsibility that directly impacts patient outcomes. Using a hypotonic solution like 1/2 NS for resuscitation can lead to cardiovascular collapse.
Nurses must continuously monitor the patient's response to fluid resuscitation, including vital signs (BP, HR), urine output, mental status, and signs of fluid overload (e.g., crackles in the lungs, edema).
What if the patient has a head injury? In this case, hypotonic solutions like 1/2 NS are especially dangerous as the fluid shift into cells can increase intracranial pressure (ICP) and worsen cerebral edema.

How to Approach the Question

First, identify the core of the question: it asks which fluid is INAPPROPRIATE for 'fluid resuscitation'. The keyword 'not' is critical.
Understand the goal of fluid resuscitation: to rapidly increase the volume of fluid within the blood vessels (intravascular space) to improve blood pressure and tissue perfusion.
Recall the concept of tonicity: how an IV fluid's concentration compares to blood plasma.
Evaluate each option based on its tonicity and effect on fluid movement:
Isotonic fluids (RL, NS) stay in the vascular space, making them ideal.
Hypotonic fluids (1/2 NS) pull water out of the vascular space into cells, making them contraindicated.

Concept Tested & Keywords

Concept Tested: Intravenous Fluid Selection for Resuscitation
Stem keywords: fluid resuscitation, fluid
Lead-in keywords: not
Negative lead-in flag: The question asks which fluid would NOT be used, requiring identification of the contraindicated option.

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 1 p. 142-144