Which of the following side effects is associated with the blockade of attachment of norepinephrine to alpha-1 receptors?
Orthostatic hypotension
Increased psychotic symptoms
Severe appetite disturbance
Hypertensive crisis
The Correct Answer is A
Choice A reason: Blocking norepinephrine at alpha-1 receptors inhibits vasoconstriction, reducing vascular tone. This disrupts baroreceptor-mediated blood pressure regulation, causing orthostatic hypotension when standing. The autonomic nervous system fails to compensate for positional changes, leading to dizziness and fainting, a common side effect of alpha-1 blockers like prazosin.
Choice B reason: Increased psychotic symptoms are linked to dopamine dysregulation, not alpha-1 receptor blockade. Norepinephrine blockade affects autonomic functions, not psychosis, which involves mesolimbic dopamine hyperactivity. This side effect is unrelated to alpha-1 receptors, making this option scientifically inaccurate for the described mechanism.
Choice C reason: Appetite disturbance is typically associated with serotonin or histamine receptor effects, not alpha-1 norepinephrine blockade. Norepinephrine at alpha-1 receptors regulates vascular tone, not appetite control, which involves hypothalamic signaling. This side effect is not a direct consequence of alpha-1 blockade, rendering this option incorrect.
Choice D reason: Hypertensive crisis results from excessive norepinephrine activity, often due to monoamine oxidase inhibitors, not alpha-1 receptor blockade. Blocking alpha-1 receptors causes vasodilation, lowering blood pressure, not raising it. This makes hypertensive crisis an unlikely side effect, contrary to the pharmacological mechanism of alpha-1 blockers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Canceling discharge overrides patient autonomy and recovery progress. Stabilized schizophrenia, managed with antipsychotics targeting dopamine, supports discharge with adherence. This action disregards the patient’s rights and neurobiological stabilization, making it an inappropriate advocacy response.
Choice B reason: Notifying security dismisses family concerns and escalates unnecessarily. Schizophrenia management relies on medication adherence, not coercion. This approach ignores patient rights and family education needs, failing to address neurobiological treatment principles, making it incorrect for advocacy.
Choice C reason: Transferring to long-term care assumes ongoing instability, ignoring current stabilization. Antipsychotics correct dopamine imbalances, supporting outpatient management. This undermines patient autonomy and recovery potential, making it an inappropriate advocacy action for a stabilized patient.
Choice D reason: Explaining medication adherence promotes patient autonomy and recovery. Antipsychotics reduce dopamine-driven hallucinations, ensuring symptom control. Educating the family empowers support for adherence, aligning with patient rights and neurobiological treatment principles, making this the correct advocacy response.
Correct Answer is A
Explanation
Choice A reason: Clarifying “pusillanimous” seeks specific meaning, ensuring accurate understanding of the patient’s emotional state. Dreams reflecting fear or inadequacy may involve amygdala hyperactivity or serotonin imbalances. This promotes therapeutic communication, addressing emotional distress linked to neurobiological stress responses, making it the most appropriate response.
Choice B reason: Relating personal experience shifts focus from the patient, reducing therapeutic effectiveness. Emotional drainage, possibly tied to REM sleep disruptions or cortisol spikes, requires exploration, not nurse self-disclosure. This risks dismissing the patient’s unique neurobiological experience, making it inappropriate for clarification.
Choice C reason: Assuming discomfort generalizes the dream’s impact without clarifying “pusillanimous.” Emotional drainage may reflect amygdala-driven stress responses, but this response lacks specificity. Clarification requires direct exploration of the term to understand its emotional and neurobiological significance, making this less effective.
Choice D reason: Summarizing poor sleep oversimplifies the emotional drainage, potentially linked to serotonin dysregulation or heightened stress responses. It fails to explore “pusillanimous,” missing the dream’s specific emotional content. Clarification requires detailed inquiry into the term’s meaning, making this response inadequate.
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