A client presents to the emergency department with complaints of numbness and weakness which began in the feet and has progressed symmetrically in an ascending pattern through the bilateral lower extremities. The nurse understands that this pattern most closely fits which neurological disorder?
Multiple sclerosis
Guillain Barre Syndrome
Myasthenia gravis
Parkinson's disease
The Correct Answer is B
A. MS is a chronic autoimmune disorder affecting the central nervous system (CNS), specifically the brain and spinal cord. It typically presents with a wide range of neurological symptoms such as blurred vision, sensory disturbances, weakness, and difficulties with coordination and balance. However, MS does not typically present with a sudden onset of ascending numbness and weakness starting in the feet and moving upwards.
B. GBS is an acute autoimmune disorder where the immune system attacks the peripheral nervous system. It often starts with numbness, tingling, and weakness in the feet and legs, which then
progresses symmetrically upwards to involve the upper limbs and potentially affect respiratory muscles. This ascending pattern of weakness is characteristic of GBS, making it the most likely diagnosis in this scenario.
C. Myasthenia gravis is a chronic autoimmune disorder affecting neuromuscular junctions, leading to muscle weakness and fatigue, especially with repetitive use. It typically presents with fluctuating muscle weakness that worsens with activity and improves with rest. The pattern of ascending numbness and weakness seen in the scenario does not align with the typical presentation of myasthenia gravis.
D. Parkinson's disease is a progressive neurological disorder primarily affecting movement. It presents with symptoms such as tremors, bradykinesia (slowness of movement), rigidity, and postural instability. It does not typically cause numbness or a symmetrical ascending pattern of weakness as described in the scenario.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Plasmapheresis, also known as plasma exchange, is a treatment where blood plasma containing harmful antibodies is removed from the blood and replaced with donor plasma or albumin. This procedure is effective in reducing the severity and duration of symptoms in GBS by removing the antibodies that attack the peripheral nerves. Plasmapheresis is typically recommended within the first 2 weeks of symptom onset to maximize its benefits.
B. Riluzole is a medication that modulates glutamate neurotransmission and is primarily used in the treatment of amyotrophic lateral sclerosis (ALS). While some studies have explored its potential use in GBS, its efficacy in GBS treatment remains uncertain and it is not considered a standard treatment.
C. Anticholinesterase agents, such as pyridostigmine, are used in conditions characterized by neuromuscular junction dysfunction, such as myasthenia gravis. However, in GBS, where the primary pathology is the demyelination of peripheral nerves rather than neuromuscular junction dysfunction, anticholinesterase agents are not effective and can potentially worsen symptoms.
D. Acyclovir is an antiviral medication primarily used to treat infections caused by herpesviruses, including herpes simplex virus (HSV) and varicella-zoster virus (VZV). It has no role in the treatment of GBS because GBS is not caused by viral infections.
Correct Answer is C
Explanation
A. The soles of the feet are not typically assessed for cyanosis because they are not a reliable indicator of central cyanosis. Cyanosis is best evaluated in areas where mucous membranes are visible.
B. Similar to the soles of the feet, the palms of the hands are not a reliable indicator of central cyanosis. Cyanosis is not typically visible on the palms unless there are severe systemic circulation issues.
C. The oral mucosa (inside the mouth) is a reliable area to assess for central cyanosis. The nurse can inspect the lips, tongue, and buccal mucosa for a bluish discoloration, which indicates decreased arterial oxygen saturation.
D. The nail beds are also a reliable indicator of central cyanosis. The nurse can assess the color of the nail beds and look for bluish discoloration, which can be more apparent in darker-skinned individuals compared to the lips and oral mucosa.
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