A case of motor bike accident comes with bleeding. Which is the preferred IV fluid to be given?

NHM MP Staff Nurse-2019

Medical Surgical Nursing

Hard

Appeared in: NHM MP Staff Nurse-2019

Explanation

Ringer's Lactate is the preferred isotonic crystalloid for initial resuscitation in hemorrhagic shock.
Its electrolyte composition is the most similar to human plasma, making it a 'balanced' solution that replenishes lost volume physiologically.
The lactate component is metabolized by the liver into bicarbonate, which helps to counteract the metabolic acidosis often seen in shock states.
Using Ringer's Lactate reduces the risk of developing hyperchloremic metabolic acidosis, a complication associated with large-volume infusions of Normal Saline.

Option B: While Normal Saline is also an isotonic crystalloid used for resuscitation, it is not the preferred choice for large volumes. Its high chloride content (154 mEq/L vs. ~103 mEq/L in plasma) can lead to hyperchloremic metabolic acidosis.
Option C: Dextrose 5% in water (D5W) is ineffective for volume resuscitation. The dextrose is quickly metabolized, leaving free water that moves out of the intravascular space and into cells, failing to restore blood pressure. It can also cause hyperglycemia.
Option D: Dextrose 50% is a highly hypertonic solution used exclusively to correct severe, symptomatic hypoglycemia. Administering it for volume resuscitation would cause a dangerous osmotic shift, pulling water out of cells and leading to severe cellular dehydration and electrolyte imbalances.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Fluid resuscitation in hemorrhagic shock as background academic context rather than a clinical decision trigger.
Nurses in emergency and critical care settings must be able to rapidly identify signs of hemorrhagic shock and initiate fluid resuscitation, often before a physician is at the bedside. Knowing the preferred fluid is a critical patient safety competency.
The nurse's role includes preventing the 'lethal triad' of trauma: acidosis, hypothermia, and coagulopathy. Using warmed, balanced crystalloids like Ringer's Lactate is a key intervention to combat this.
Nurses must continuously monitor the patient's response to fluid boluses (e.g., vital signs, urine output) and anticipate the need for blood products if the patient does not stabilize, according to massive transfusion protocols.

How to Approach the Question

First, identify the patient's clinical condition. The keywords 'motor bike accident' and 'bleeding' point directly to trauma with potential hemorrhagic shock.
Next, determine the immediate therapeutic goal. For hemorrhagic shock, the goal is rapid restoration of intravascular volume to maintain organ perfusion.
Evaluate each IV fluid option based on its ability to achieve this goal. Ask yourself, 'Will this fluid stay in the blood vessels and raise blood pressure?'
Eliminate the clearly incorrect options. Dextrose solutions (5% and 50%) are not volume expanders. D5W becomes free water, and D50W is for hypoglycemia. This leaves Ringer's Lactate and Normal Saline.
Compare the two appropriate options. Both are isotonic crystalloids used for resuscitation. The question asks for the 'preferred' fluid.
Recall the key difference: Ringer's Lactate is a 'balanced' solution that is more physiologic and less likely to cause acidosis than Normal Saline in large volumes. Therefore, it is the preferred choice in most trauma guidelines.

Concept Tested & Keywords

Concept Tested: Fluid resuscitation in hemorrhagic shock
Stem keywords: motor bike accident, bleeding, IV fluid
Lead-in keywords: preferred
Clinical cues: The patient is bleeding after a trauma, which indicates hypovolemic (hemorrhagic) shock, requiring immediate volume replacement.

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