Guillain Barre Syndrome is a disease of which of the following?

SCTIMST Staff Nurse - 2016

Medical & Surgical Nursing

Easy

Appeared in: SCTIMST Staff Nurse - 2016

Explanation

Guillain-Barré Syndrome (GBS) is an autoimmune condition where the body's immune system attacks the myelin sheath of the peripheral nerves.
The peripheral nervous system (PNS) consists of all nerves outside the brain and spinal cord.
This attack on the PNS leads to demyelination, which impairs nerve conduction, causing the characteristic symptoms of ascending muscle weakness and areflexia (loss of reflexes).
While it can affect cranial nerves (part of the PNS) and spinal nerve roots, it does not primarily damage the tissue of the brain or spinal cord itself.

Option A: The brain is part of the Central Nervous System (CNS). GBS is a disease of the Peripheral Nervous System (PNS). Cognitive functions, which are controlled by the brain, are typically unaffected in GBS.
Option C: The spinal cord is part of the CNS. While GBS affects the nerve roots that exit the spinal cord (a condition called radiculopathy), it does not cause inflammation or demyelination within the spinal cord tissue itself. A disease of the spinal cord is termed a myelopathy, such as in transverse myelitis.
Option D: This option is incorrect because GBS specifically targets the peripheral nervous system and does not primarily involve the brain and spinal cord.

Clinical Relevance

Nursing practice connection: Knowing Pathophysiology of Guillain-Barré Syndrome (GBS) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
The most critical nursing responsibility in managing GBS is frequent respiratory assessment, including monitoring vital capacity, as respiratory failure is a life-threatening complication.
Nurses must be vigilant in preventing complications of immobility, such as deep vein thrombosis (DVT), pressure injuries, and contractures, due to the rapid onset of paralysis.
What if? If a patient with GBS develops a weak cough and their vital capacity drops below 15-20 mL/kg, the nurse must anticipate and prepare for elective endotracheal intubation and mechanical ventilation to prevent acute respiratory arrest.

How to Approach the Question

First, identify the core subject of the question, which is 'Guillain-Barré Syndrome (GBS)'.
Next, recall the fundamental classification of the nervous system into the Central Nervous System (CNS: brain and spinal cord) and the Peripheral Nervous System (PNS: all other nerves).
Access your knowledge about the pathophysiology of GBS. Remember it as an autoimmune condition that attacks nerve coverings.
Crucially, differentiate where this attack occurs. GBS is a classic example of a peripheral neuropathy.
Evaluate the options based on this knowledge: 'Brain' and 'Spinal cord' are CNS structures. 'Peripheral nerve' aligns with the pathophysiology of GBS.
Therefore, select the option that correctly identifies the primary site of the disease.

Concept Tested & Keywords

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