A client who has suffered a stroke is unable to maintain respiration and is intubated and placed on mechanical ventilator support.
What portion of the brain is most likely responsible for the inability to breathe?
Brain stem.
Parietal lobe.
Occipital lobe.
Frontal lobe.
The Correct Answer is A
Choice A rationale
The brain stem controls vital functions, including respiration. Damage to the brain stem, especially the medulla oblongata, can impair respiratory control, leading to the need for mechanical ventilation.
Choice B rationale
The parietal lobe is responsible for sensory processing and does not directly influence respiratory functions. Damage here would more likely affect sensation and spatial awareness.
Choice C rationale
The occipital lobe is primarily responsible for visual processing. Injury to this area would result in visual deficits rather than impaired respiration.
Choice D rationale
The frontal lobe is involved in cognitive functions, voluntary movement, and speech production, but it does not control respiration. Damage here would affect higher cognitive functions and motor planning.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Mixed muscular dystrophy leads to progressive deterioration in all voluntary muscles, causing increasing disability over time.
Choice B rationale
This statement is incorrect because mixed muscular dystrophy affects more than just the arms and pelvic muscles and leads to significant disability.
Choice C rationale
This is not an appropriate response as it does not provide any information and deflects the client's question.
Choice D rationale
Mixed muscular dystrophy is not considered benign, as it causes significant and progressive muscle deterioration.
Correct Answer is B
Explanation
Choice A rationale
Cushing triad is a late sign of increased ICP, characterized by bradycardia, hypertension, and irregular respirations, appearing after other symptoms like decreased LOC.
Choice B rationale
Decreased LOC is one of the earliest signs of increased ICP as it reflects the brain's response to pressure changes, alerting the need for immediate intervention.
Choice C rationale
Headache can be an early sign but is not as sensitive or specific as changes in LOC when assessing for increased ICP.
Choice D rationale
Coma is a late sign of significantly increased ICP, indicating severe brain dysfunction, often following initial symptoms like decreased LOC.
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