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 B
Explanation
A. Carbidopa itself does not cross the blood-brain barrier. Its primary role in Sinemet is to inhibit the peripheral breakdown of levodopa (the precursor of dopamine) into dopamine before it reaches the brain.
B. It is true that it may take a few weeks to see the full effects of this medication, as the body needs time to adjust to it.
C. Parkinson's disease is progressive, and as the disease advances, the dosage and frequency of levodopa with carbidopa may need to be adjusted to maintain symptom control. Over time, higher doses or additional medications may be required to manage symptoms effectively.
D. Levodopa does not protect Carbidopa; rather, Carbidopa protects Levodopa from early conversion to dopamine outside the brain, which would make it less effective.
Correct Answer is C
Explanation
A. This function is typically managed by medications such as beta-blockers or calcium channel blockers, which help reduce heart rate and myocardial oxygen demand. Rosuvastatin does not directly affect heart rate or myocardial oxygen demand.
B. Medications like aspirin or other antiplatelet agents are used to inhibit platelet aggregation and reduce the risk of thrombus formation. Rosuvastatin is not primarily indicated for this purpose.
C. This is the correct rationale for prescribing rosuvastatin in a client with chronic stable angina. High LDL cholesterol levels contribute to the development and progression of atherosclerosis, which narrows coronary arteries and leads to angina. By lowering LDL cholesterol levels, rosuvastatin helps slow down the progression of atherosclerosis and reduces the risk of cardiovascular events, including angina.
D. Acute episodes of angina are typically managed with short-acting nitrates or other medications that dilate coronary arteries to improve blood flow to the heart muscle. Rosuvastatin does not provide immediate relief of angina symptoms.
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