A nurse in an outpatient mental health setting is collecting a health history from a client who is taking paroxetine for depression. The client reports to the nurse that he also takes herbal supplements. The nurse should advise the client that which of the following supplements interacts adversely with paroxetine?
Echinacea
Ginkgo
St. John's Wort
Saw palmetto
The Correct Answer is C
Choice A reason: Echinacea is used for immune support and has no significant interaction with paroxetine, an SSRI that increases serotonin by inhibiting reuptake. Echinacea’s effects on cytokine production do not alter serotonin metabolism or CYP450 enzymes, which paroxetine relies on for clearance, making it a safe supplement in this context.
Choice B reason: Ginkgo enhances cerebral blood flow but has minimal interaction with paroxetine. It may affect platelet aggregation, but paroxetine’s serotonin reuptake inhibition is primarily metabolized via CYP2D6, unaffected by ginkgo’s mechanisms. No significant pharmacodynamic or pharmacokinetic interactions occur, making this supplement safe for concurrent use with paroxetine.
Choice C reason: St. John’s Wort induces CYP3A4 and P-glycoprotein, accelerating paroxetine metabolism, an SSRI reliant on CYP2D6. This reduces paroxetine’s efficacy, lowering serotonin levels and risking treatment failure for depression. It also increases serotonin syndrome risk due to additive serotonergic effects, making it a critical interaction to avoid.
Choice D reason: Saw palmetto, used for prostate health, has no significant interaction with paroxetine. It primarily affects androgen pathways, not serotonin metabolism or CYP2D6, which paroxetine uses for clearance. No pharmacodynamic or pharmacokinetic conflicts arise, making saw palmetto a safe supplement for clients taking paroxetine for depression.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Expecting dementia clients to consistently ask for needed items is incorrect, as short-term memory loss from hippocampal degeneration impairs their ability to articulate needs. Cognitive deterioration disrupts executive function and communication, making this assumption inaccurate and reflecting a misunderstanding of dementia’s neurobiological impact on memory and expression.
Choice B reason: Assuming ambulatory dementia clients can independently perform activities of daily living is incorrect. Dementia’s progressive neuronal loss, particularly in the cortex and hippocampus, impairs planning and execution of tasks like dressing or hygiene, despite physical mobility. This reflects a misunderstanding of cognitive versus motor function in dementia’s pathology.
Choice C reason: Expecting dementia clients to know meal times is incorrect, as temporal disorientation from hippocampal and prefrontal cortex damage impairs memory and time perception. Cognitive deterioration disrupts routine recall, making this assumption inaccurate. It fails to recognize the neurobiological basis of memory deficits central to dementia’s progression.
Choice D reason: Not recognizing family is a common dementia symptom, as long-term memory impairment from cortical and hippocampal neurodegeneration disrupts autobiographical memory. This reflects accurate understanding of dementia’s progressive impact on memory systems, where familiar faces become unrecognizable, aligning with the disease’s neurobiological effects on recognition and recall.
Correct Answer is A
Explanation
Choice A reason: Redirecting to an activity uses distraction to reduce agitation in Alzheimer’s, where hippocampal and cortical degeneration causes disorientation and memory loss. Engaging in familiar activities leverages preserved procedural memory, calming the client without confronting their delusion, which aligns with neurobiological strategies to manage confusion and distress.
Choice B reason: Stating the mother died confronts the client’s delusion, likely increasing agitation due to impaired reality testing from Alzheimer’s-related cortical damage. This approach disregards the client’s cognitive limitations, as memory deficits prevent processing such corrections, potentially worsening emotional distress and behavioral symptoms.
Choice C reason: Asking why the client seeks her mother probes a delusion rooted in Alzheimer’s-related memory loss and hippocampal dysfunction. This may confuse or frustrate the client, as they cannot articulate reasons due to cognitive impairment. Redirection is more effective than exploring motives in advanced dementia.
Choice D reason: Assuming upset and addressing emotional distress may escalate agitation, as Alzheimer’s impairs emotional regulation due to amygdala and prefrontal cortex damage. While empathetic, this response risks focusing on the delusion, which the client cannot process, making redirection to an activity a more effective, neurobiologically informed approach.
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