A client with diffuse axonal injury is experiencing difficulty with respiration, heart rate, blood pressure. Which region of the brain does the nurse suspect to be affected?
Cerebral motor cortex
Brain stem
Broca's area
Occipital lobe
The Correct Answer is B
Choice A rationale: Cerebral motor cortex primarily controls voluntary movements, not autonomic functions like respiration, heart rate, and blood pressure.
Choice B rationale: The brain stem controls vital functions like respiration, heart rate, and blood pressure, so damage to this area can lead to difficulties in these functions.
Choice C rationale: Broca's area is responsible for speech production and is not directly involved in autonomic functions.
Choice D rationale: The occipital lobe is primarily associated with visual processing and perception, not autonomic functions like respiration or heart rate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale: Dysphagia, substernal burning, and belching are symptoms often associated with hiatal hernia.
Choice B rationale: While substernal burning can be a symptom of stomach-related issues, hiatal hernia is more directly linked to the symptoms described.
Choice C rationale: Schatzki ring might present with dysphagia, but it's less likely given the overall symptoms described.
Choice D rationale: Symptoms of dysphagia and substernal burning can be indicative of a hiatal hernia, especially when considered together.
Correct Answer is A
Explanation
Choice A rationale: The Tensilon test involves injecting edrophonium, and in myasthenia gravis, temporary improvement in muscle strength confirms the diagnosis by demonstrating increased acetylcholine activity at the neuromuscular junction.
Choice B rationale: This describes the pathophysiology of myasthenia gravis but doesn’t directly confirm the diagnosis via the Tensilon test.
Choice C rationale: While this may be seen in myasthenia gravis, the Tensilon test specifically aims to observe improved muscle strength after administration.
Choice D rationale: While the presence of these antibodies is a characteristic of myasthenia gravis, the Tensilon test is used to assess the immediate response to the medication for diagnostic confirmation.
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