What is status asthmaticus?
A chronic form of asthma that causes persistent symptoms
An asthma attack that is triggered by vigorous exercise
A mild asthma attack that resolves with bronchodilators
A severe asthma attack that does not respond to therapy
The Correct Answer is D
Choice A reason: Chronic asthma involves persistent symptoms managed over time, not an acute, life-threatening event. Status asthmaticus is an acute, severe exacerbation unresponsive to standard treatments, requiring urgent intervention, making this choice incorrect for describing status asthmaticus.
Choice B reason: An asthma attack triggered by exercise is exercise-induced bronchospasm, not status asthmaticus. Status asthmaticus is a severe, prolonged attack resistant to therapy, not defined by a specific trigger like exercise, making this choice incorrect.
Choice C reason: A mild asthma attack resolving with bronchodilators responds to standard therapy, unlike status asthmaticus, which is a severe, life-threatening attack unresponsive to bronchodilators and corticosteroids, requiring intensive care, making this choice incorrect for the condition.
Choice D reason: Status asthmaticus is a severe, prolonged asthma attack that does not respond to standard treatments like bronchodilators and corticosteroids. It causes critical airway obstruction and hypoxia, requiring aggressive medical intervention, accurately describing the condition and making this the correct choice.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Bradycardia, or slow heart rate, is not typically associated with dehydration. Dehydration reduces blood volume, triggering compensatory tachycardia to maintain cardiac output. Bradycardia may occur in severe cases with electrolyte imbalances, but it is not a primary manifestation, making this choice incorrect for dehydration.
Choice B reason: Eupnea refers to normal breathing. Dehydration does not directly alter respiratory rate unless severe metabolic acidosis occurs, prompting compensatory hyperventilation. The described symptoms suggest hypovolemia, not respiratory changes, so eupnea is not an additional manifestation of dehydration, making this choice incorrect.
Choice C reason: Orthostatic hypotension, a drop in blood pressure upon standing, occurs in dehydration due to reduced blood volume from fluid loss (e.g., diarrhea). This hypovolemia impairs the body’s ability to maintain blood pressure during positional changes, leading to lightheadedness, making this the correct additional manifestation.
Choice D reason: Elevated blood pressure is not associated with dehydration. Hypovolemia from fluid loss causes low blood pressure due to decreased cardiac output. The body’s compensatory mechanisms, like vasoconstriction, aim to maintain pressure but do not elevate it above normal, making this choice incorrect.
Correct Answer is C
Explanation
Choice A reason: Diarrhea is not a typical feature of autonomic dysreflexia, which involves sympathetic overactivity causing vasoconstriction. Bowel dysfunction may occur in spinal cord injury, but it is not specific to dysreflexia, making this incorrect.
Choice B reason: Tachycardia can occur in autonomic dysreflexia due to sympathetic stimulation, but it is less specific than headache, which is a hallmark symptom from severe hypertension, making this choice incorrect.
Choice C reason: Autonomic dysreflexia, often triggered by stimuli below the injury level, causes severe hypertension, leading to a pounding headache due to increased intracranial pressure. This is a hallmark symptom, making this the correct choice.
Choice D reason: Hypotension is not associated with autonomic dysreflexia, which causes hypertension from unopposed sympathetic responses. Hypotension may occur in spinal shock, not dysreflexia, making this choice incorrect.
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