Which effect on the central nervous system is related to symptoms of multiple sclerosis (MS)?
Degeneration of dopamine-producing neurons.
Demyelination of nerve fibers.
Overproduction of acetylcholine.
Loss of motor neurons in the spinal cord.
The Correct Answer is B
Choice A reason: Degeneration of dopamine neurons causes Parkinson’s, not MS, which involves nerve fiber demyelination. This is incorrect, as it misattributes a Parkinson’s-related mechanism to MS, unlike demyelination, which explains the neurological symptoms in multiple sclerosis patients.
Choice B reason: Demyelination of nerve fibers in the central nervous system disrupts signal transmission, causing MS symptoms like weakness and vision issues. This aligns with neurological pathophysiology, making it the correct effect related to the symptoms of multiple sclerosis in patients.
Choice C reason: Overproduction of acetylcholine is unrelated to MS, which is driven by demyelination, not neurotransmitter excess. This is incorrect, as it does not explain the neurological deficits in MS, unlike the demyelination of nerve fibers central to the disease’s symptoms.
Choice D reason: Loss of motor neurons occurs in ALS, not MS, where demyelination causes symptoms. This is incorrect, as it confuses MS with a different neurodegenerative condition, unlike demyelination, which is the primary central nervous system effect in multiple sclerosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C"]
Explanation
Choice A reason: Obesity, particularly central, is common in Cushing syndrome due to cortisol-induced fat redistribution. This aligns with endocrine assessment findings, making it a correct manifestation the nurse would expect when evaluating a patient with Cushing syndrome for physical signs.
Choice B reason: Bruising occurs in Cushing syndrome due to cortisol weakening blood vessels and skin. This is a typical integumentary finding, aligning with clinical assessments, making it a correct manifestation the nurse would note in a patient with Cushing syndrome during evaluation.
Choice C reason: Edema results from cortisol’s mineralocorticoid effects, causing fluid retention in Cushing syndrome. This aligns with cardiovascular and fluid balance assessments, making it a correct manifestation the nurse would expect when assessing a patient with this endocrine disorder.
Choice D reason: Abdominal pain is not a primary manifestation of Cushing syndrome, though striae or muscle weakness may occur. Obesity and bruising are more specific, making this incorrect, as it is not a typical finding in the nurse’s assessment of Cushing syndrome.
Choice E reason: Bronze skin is associated with Addison’s disease, not Cushing syndrome, which causes moon facies or buffalo hump. Obesity and edema are correct, making this incorrect, as it misattributes a finding to Cushing syndrome in the nurse’s assessment.
Correct Answer is B
Explanation
Choice A reason: Showering and walking the next day are appropriate post-thyroidectomy activities, promoting mobility without strain. Expecting yellow drainage indicates a misunderstanding, as it suggests infection, making this correct and incorrect for needing further teaching, as it aligns with recovery expectations.
Choice B reason: Yellow drainage from the incision suggests infection, not a normal post-thyroidectomy expectation, indicating a need for further teaching. Normal drainage, if any, is minimal and serosanguinous, making this the correct choice, as it reflects a misconception requiring clarification in the patient’s recovery education.
Choice C reason: Avoiding heavy lifting is accurate, as it prevents strain on the surgical site post-thyroidectomy. Yellow drainage is an incorrect expectation, making this correct and incorrect for needing teaching, as it aligns with proper recovery restrictions to ensure healing and safety.
Choice D reason: Avoiding excessive neck extension is appropriate to protect the incision and promote healing post-thyroidectomy. Yellow drainage is a misconception, making this correct and incorrect for needing teaching, as it reflects proper understanding of activity limitations during the recovery period.
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