Identify the serum lithium level for maintenance and safety.
0.5 to 1.2 mEq/L
10 to 50 mEq/L
0.1 to 1 mEq/L
50 to 100 mEq/L
The Correct Answer is A
Choice A reason: Lithium’s therapeutic range for maintenance in bipolar disorder is 0.5–1.2 mEq/L, balancing mood stabilization via sodium channel modulation and neuroprotection with safety. This range minimizes toxicity risks like tremors or renal damage, ensuring effective serotonin and dopamine regulation while maintaining safe serum concentrations.
Choice B reason: A 10–50 mEq/L lithium level is far above the therapeutic range, causing severe toxicity, including seizures or coma, due to excessive sodium channel inhibition and neuronal dysfunction. This range is lethal, disrupting renal and neurological function, making it scientifically inaccurate for maintenance or safety.
Choice C reason: A 0.1–1 mEq/L range is partially subtherapeutic, as levels below 0.5 mEq/L are ineffective for mood stabilization in bipolar disorder. Lithium requires 0.5–1.2 mEq/L to modulate sodium channels and serotonin, making this range inadequate for therapeutic efficacy while still posing minor toxicity risks.
Choice D reason: A 50–100 mEq/L lithium level is exponentially above safe limits, causing fatal toxicity, including renal failure and neurological damage, due to extreme sodium channel disruption. This range is not viable for maintenance, as it far exceeds the therapeutic window, leading to severe neurobiological and systemic harm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Offering dessert to stop yelling uses bargaining, not distraction, and may reinforce agitation in Alzheimer’s, where cortical and amygdala damage impairs emotional regulation. This approach risks escalating distress by focusing on the behavior, which the client cannot control due to neurocognitive deficits, making it ineffective.
Choice B reason: Asking if the client wants to finish the meal focuses on the agitation’s context, potentially worsening distress in Alzheimer’s due to impaired reasoning from cortical degeneration. This confrontational approach does not redirect attention, failing to leverage preserved procedural memory, which distraction techniques use to calm neurobiological agitation.
Choice C reason: Suggesting to watch television is a distraction technique, redirecting attention from agitation triggers in Alzheimer’s. By engaging preserved sensory and procedural memory, it reduces amygdala-driven emotional distress without confronting cognitive deficits, aligning with neurobiological strategies to manage agitation and promote calm in dementia care.
Choice D reason: Stating misunderstanding focuses on the client’s communication deficits, likely increasing frustration in Alzheimer’s due to hippocampal and cortical damage. This does not distract from agitation triggers and may exacerbate distress, as the client cannot process or correct their behavior, making it an ineffective response compared to redirection.
Correct Answer is C
Explanation
Choice A reason: Reminding a dementia patient of forgotten information supports memory function and reduces frustration. Dementia involves progressive neuronal loss, impairing short-term memory due to hippocampal and cortical damage. Gentle reminders align with cognitive support strategies, maintaining patient comfort without overwhelming their limited cognitive capacity, making this approach appropriate.
Choice B reason: Engaging in favorite activities leverages preserved long-term memory in dementia, as the disease primarily affects short-term memory and executive function due to amyloid plaques and tau tangles. Familiar tasks reduce agitation and promote well-being, as they align with the patient’s cognitive abilities, making this a scientifically sound caregiving strategy.
Choice C reason: Introducing new and different activities daily is inappropriate, as dementia patients struggle with learning and adapting due to impaired neuroplasticity and hippocampal dysfunction. Novel tasks can cause confusion and agitation, as they overwhelm cognitive reserves. Familiar routines are more effective, requiring intervention to educate the caregiver on maintaining consistency.
Choice D reason: Encouraging discussion about friends and family taps into preserved long-term memory in early dementia, as the disease initially spares autobiographical memory. Social engagement supports emotional well-being and cognitive stimulation, reducing isolation. This approach is scientifically appropriate, as it aligns with the patient’s cognitive strengths and promotes quality of life.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
