The mother of a 20yearold woman recently diagnosed with paranoid schizophrenia asks the nurse what causes schizophrenia. The nurse recognizes which of the following are implicated in the etiology of schizophrenia?
Thyroxine
Erythropoietin
Glutamate
Serotonin
The Correct Answer is C
A) Incorrect. Thyroxine is a hormone produced by the thyroid gland and is not directly implicated in the etiology of schizophrenia.
B) Incorrect. Erythropoietin is a hormone that stimulates the production of red blood cells and is not directly implicated in the etiology of schizophrenia.
C) Correct. Glutamate, an excitatory neurotransmitter, has been implicated in the development of schizophrenia. Abnormalities in glutamate signaling have been identified in individuals with schizophrenia.
D) Incorrect. While serotonin abnormalities have been associated with mood disorders such as depression, they are not considered a primary factor in the etiology of schizophrenia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Incorrect. While the client's sleep disturbance and lack of selfcare may contribute to
ineffective health maintenance, the more immediate concern is addressing the risk of imbalanced nutrition.
B) Incorrect. While clients in a manic state may exhibit hyperactivity and impulsivity, there is no indication in the scenario that the client poses an immediate risk for other-directed violence.
C) Correct. The client's reported lack of sleep and refusal to eat for an extended period raises concerns about nutritional deficits and dehydration. This is the most immediate and pressing issue to address.
D) Incorrect. While the client's manic state may increase the risk of impulsive behavior, there is no specific indication in the scenario that the client is at immediate risk for suicide.
Correct Answer is B
Explanation
A. Agitation can be a sign of distress, but sudden cheerfulness may be indicative of a decision to act on suicidal thoughts, as the individual may feel relieved to have made a decision.
B. Sudden cheerfulness can be a concerning sign, as it may indicate that the client has made a decision to carry out suicidal thoughts.
C. Psychomotor retardation is a symptom of depression and may not necessarily indicate imminent risk of suicide.
D. Not attending group therapy may be a sign of withdrawal or isolation, but it does not directly indicate immediate suicidal risk.
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