A patient receives a prescription for depot injection of risperidone. What teaching should the nurse provide regarding the onset of therapeutic effects?
The effects can take several weeks to achieve
Therapeutic effects will occur immediately
Full effects will be observed after the first dose
Effects will last for 24 hours post-injection
The Correct Answer is A
Choice A reason: Risperidone long-acting injection utilizes microsphere technology that requires a significant lag time for the polymer to degrade and release the active medication. Consequently, therapeutic plasma levels are typically not reached for 3 to 4 weeks, necessitating oral supplementation during the initial induction phase to maintain clinical stability.
Choice B reason: Immediate therapeutic effects are physiologically impossible with depot risperidone formulations due to the slow-release matrix design. Unlike immediate-release aqueous injections used for acute agitation, the depot form is engineered for sustained maintenance therapy and lacks the rapid bioavailability required to produce an instantaneous reduction in psychotic symptoms.
Choice C reason: Full clinical effects are not observed after a single dose because the steady-state concentration of the drug is only achieved after multiple sequential injections. The titration of the medication within the systemic circulation occurs gradually, and clinical improvement is usually assessed over a period of several months.
Choice D reason: The pharmacokinetics of depot risperidone are specifically designed to provide a duration of action far exceeding 24 hours, usually lasting 2 weeks per injection. If the effects dissipated within 1 day, the medication would fail its primary purpose of improving adherence and providing stable neuroleptic coverage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Social anxiety disorder focuses specifically on the fear of being scrutinized, judged, or embarrassed by others in social or performance-related situations. While it may lead to staying at home, the core fear is social evaluation rather than the logistical inability to escape a specific physical environment or situation.
Choice B reason: Agoraphobia is characterized by marked fear or anxiety about being in situations where escape might be difficult or help might not be available in the event of developing panic-like symptoms. This often leads to "homebound" behavior, where the individual feels safe only within their own residence and avoids public spaces or transportation.
Choice C reason: Generalized anxiety disorder (GAD) involves excessive, uncontrollable worry about various aspects of daily life, such as health, finances, or work. While GAD is pervasive and distressing, it is not characterized by the specific situational avoidance or the localized fear of being unable to escape that defines agoraphobia.
Choice D reason: Panic disorder is defined by recurrent, unexpected panic attacks and the persistent worry about having more attacks. While agoraphobia often develops as a complication of panic disorder (as the patient fears having an attack in public), the specific fear of being unable to escape situations is the defining feature of agoraphobia itself.
Correct Answer is B
Explanation
Choice A reason: Social network size is considered a sociocultural factor rather than a strictly economic one. While a robust social support system is vital for psychological resilience and stress mitigation, it does not directly measure the financial resources or the fiscal security required to access healthcare, housing, and nutritional needs.
Choice B reason: Income stability is a primary economic determinant of mental health because it dictates a client's ability to maintain a consistent standard of living. Fluctuations in financial security are strongly correlated with increased cortisol levels, chronic stress, and a higher prevalence of generalized anxiety disorder and major depression.
Choice C reason: The number of dependents is a demographic variable that influences financial strain but is not an economic factor itself. While having more dependents can increase the cost of living, the clinical focus of an economic assessment is the availability and reliability of the funds to support them.
Choice D reason: Educational attainment is a socioeconomic status indicator that often correlates with earning potential, but it is categorized as a social determinant of health. A high level of education does not guarantee current economic security if the client is presently unemployed or facing a volatile job market.
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