A client with C4 spinal cord injury is at greatest risk for?

AIIMS BBSR SNO - 2019

Medical Surgical Nursing

Hard

Appeared in: AIIMS BBSR SNO - 2019

Explanation

A C4 spinal cord injury is a high cervical injury that poses the most immediate threat to breathing.
The phrenic nerve, which controls the diaphragm (the primary muscle for breathing), originates from spinal nerves C3, C4, and C5.
Injury at the C4 level can lead to paralysis or significant weakness of the diaphragm, causing severe respiratory compromise or complete respiratory failure.
This is considered the most life-threatening complication, taking priority over other potential issues based on the Airway, Breathing, Circulation (ABCs) framework of emergency care.

Option A: While neurogenic shock is a serious complication of spinal cord injuries (typically at T6 or above) due to loss of sympathetic tone, it is not as immediately life-threatening as the inability to breathe.
Option C: Paralytic ileus, a condition where bowel motility ceases, can occur due to autonomic disruption after an SCI. However, it typically develops over 2 to 3 days and is not the most acute, life-threatening risk compared to respiratory failure.
Option D: Stress ulcers (e.g., Curling's ulcer) can develop due to the immense physiological stress of a major trauma like an SCI, but they are a later complication and not the primary immediate risk to the patient's life.

Clinical Relevance

Nursing practice connection: Use the key finding related to Complications of High Cervical Spinal Cord Injury to guide bedside assessment, documentation, and the next nursing action.
The immediate and highest priority nursing intervention for a patient with a suspected or confirmed high cervical injury is to assess and maintain a patent airway and support breathing.
Nurses must continuously monitor respiratory rate, rhythm, depth, oxygen saturation (SpO2), and be alert for signs of respiratory distress like paradoxical breathing (abdomen rises while chest falls during inspiration).
Most patients with C4 injuries will require immediate intubation and mechanical ventilation to survive.

How to Approach the Question

First, identify the anatomical level of the injury mentioned in the question, which is 'C4' in the high cervical spine.
Recall the key physiological functions controlled by nerves originating at this level. The most critical function associated with the C3-C5 segments is the phrenic nerve's control over the diaphragm.
Apply the fundamental principle of prioritization in nursing and emergency care: Airway, Breathing, Circulation (ABCs).
Evaluate the given options in the context of this ABC priority. 'Respiratory compromise' is a direct 'Breathing' problem.
Compare the immediacy of the risks. Loss of breathing is fatal within minutes, whereas neurogenic shock, paralytic ileus, and stress ulcers are complications that, while serious, are not as immediately catastrophic.
Conclude that respiratory compromise is the single greatest and most immediate risk for a C4 spinal cord injury.

Concept Tested & Keywords

Concept Tested: Complications of High Cervical Spinal Cord Injury
Stem keywords: C4 spinal cord injury, greatest risk
Lead-in keywords: greatest risk
Clinical cues: The anatomical level 'C4' is the most critical piece of information, as it points to a high cervical injury with specific life-threatening implications.

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