A patient has recently been diagnosed with multiple sclerosis. Which response best explains the etiology of multiple sclerosis (MS)?
The disease is prevalent in certain geographical locations.
There is a well-defined genetic cause.
Inflammatory processes are responsible for the signs and symptoms.
Ischemic lesions in the brain are responsible for the signs and symptoms.
The Correct Answer is C
A. The disease is prevalent in certain geographical locations: This statement is true but does not explain the etiology of MS. Geographic prevalence does not address the underlying cause.
B. There is a well-defined genetic cause: While genetics may play a role in MS, there is no single well-defined genetic cause for the disease.
C. Inflammatory processes are responsible for the signs and symptoms: MS is an autoimmune disease characterized by inflammation and demyelination of the central nervous system, leading to the signs and symptoms of the disease.
D. Ischemic lesions in the brain are responsible for the signs and symptoms: MS is primarily caused by demyelination rather than ischemic lesions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Occurs when you are physically and psychologically exhausted: An aura is a specific set of symptoms that precedes the headache, not related to exhaustion.
B. Occurs in the postdrome and causes you to feel sleepy and weak: The postdrome phase is after the headache, and an aura occurs before the headache.
C. Is a trigger such as a stressful event, that is the cause of the headache: An aura is not a trigger but rather a symptom experienced before the headache begins.
D. An aura is a warning, such as an unpleasant smell, before the headache begins: An aura is a neurological phenomenon that can include visual disturbances, unusual smells, or other sensory changes occurring before the onset of a migraine.
Correct Answer is C
Explanation
A. Appendicitis: Appendicitis typically presents with right lower quadrant pain, not LLQ pain.
B. Barrett's esophagus: Barrett's esophagus is a condition associated with chronic GERD and does not cause leukocytosis, fever, or LLQ pain.
C. Diverticulitis: Diverticulitis often presents with LLQ pain, fever, and leukocytosis due to inflammation or infection of the diverticula in the colon.
D. Irritable bowel syndrome (IBS): IBS may cause abdominal pain, but it does not cause fever or leukocytosis, and the pain is typically relieved with defecation and not localized to the LLQ.
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