A patient is brought to the emergency department with complain of pelvic fracture. The extremity is immobilised with Thomas splint and patient kept on bed rest to?

1. A

   Prevent external rotation

2. B

   Prevent fracture

3. C

   Prevent fat embolism

4. D

   Prevent further injury

Appeared in: NORCET 3 - 2022 (Shift-2)

Explanation

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• Fractures of large bones, such as the pelvis and femur, can release fat globules from the bone marrow into the venous circulation.
• Movement of the unstable fracture fragments increases the risk of these fat globules being dislodged and traveling through the bloodstream.
• Strict bed rest and immobilization are primary interventions to stabilize the fracture, thereby preventing the mobilization of fat globules and reducing the risk of Fat Embolism Syndrome (FES).
• FES is a life-threatening complication characterized by respiratory distress, neurological symptoms, and a petechial rash, making its prevention a top priority.

Why Other Options Were Wrong

• Option A: Preventing external rotation is a primary goal for managing intracapsular hip fractures or post-hip arthroplasty to prevent dislocation of the femoral head or prosthesis. It is not the main priority for a pelvic fracture.
• Option B: This option is illogical because the patient has already sustained a fracture. All interventions are aimed at managing the existing injury and preventing complications, not preventing the initial injury.
• Option D: While preventing further injury is a valid general goal of immobilization, it is not the most specific or critical reason. Preventing fat embolism addresses a specific, high-risk, and life-threatening complication directly related to pelvic and long bone fractures.

Related Visual

• Visual 1: Diagram - Pathophysiology of Fat Embolism Syndrome. This visual would show a fractured long bone with fat globules from the marrow entering a damaged blood vessel and traveling to the lungs.
• Visual 2: Infographic - The Classic Triad of FES. This would visually represent the three key symptoms: a lung icon for respiratory distress, a brain icon for neurologic changes, and a skin icon showing petechiae.

Clinical Relevance

• Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing Complications of Musculoskeletal Trauma in acute care settings.
• Early recognition and prevention of FES are critical nursing responsibilities in trauma care. The nurse must maintain a high index of suspicion in patients with long bone or pelvic fractures.
• Nursing care involves meticulous handling of the injured extremity, ensuring immobilization is maintained, and continuous monitoring for the early signs of FES: altered mental status, respiratory changes (like tachypnea and hypoxia), and petechiae.
• What if? If the patient with the pelvic fracture suddenly develops shortness of breath and confusion 36 hours after admission, the nurse's immediate priority is to apply high-flow oxygen, raise the head of the bed, perform a rapid respiratory and neurological assessment, and urgently notify the medical team, stating suspicion for FES.

How to Approach the Question

• Step 1: Identify the core clinical scenario: a patient with a pelvic fracture is immobilized and on bed rest.
• Step 2: Recall the major, life-threatening complications associated with fractures of large bones like the pelvis. The most significant early complication is Fat Embolism Syndrome (FES). Other complications include hemorrhage, DVT, and infection.
• Step 3: Analyze the purpose of the specific intervention mentioned: bed rest. Bed rest's primary function in this context is to minimize movement.
• Step 4: Connect the intervention to the complications. Minimizing movement of the fracture site directly prevents the dislodging of fat globules from the bone marrow into the bloodstream.
• Step 5: Evaluate the options based on this connection. 'Prevent fat embolism' is a direct, specific, and critical goal of minimizing movement. 'Prevent further injury' is too general. 'Prevent external rotation' is for a different type of injury. 'Prevent fracture' is illogical.

Concept Tested & Keywords

• Concept Tested: Complications of Musculoskeletal Trauma
• Stem keywords: pelvic fracture, Thomas splint, bed rest, immobilised
• Lead-in keywords: to?
• Clinical cues: The presence of a pelvic fracture is a high-risk indicator for fat embolism syndrome.

Question ID

QD-vR_DOjK3ulSCW4Z5nYM

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