In the United States, which diagnosis has the lowest percentage of occurrence?
Major depressive disorder.
Generalized anxiety disorder.
Obsessive-compulsive disorder.
Schizophrenia.
The Correct Answer is D
Schizophrenia is a chronic psychiatric disorder marked by delusions, hallucinations, and disorganized thinking. It affects approximately 0.25% to 0.64% of the U.S. population annually, making it one of the least prevalent major mental illnesses. Onset typically occurs in late adolescence or early adulthood, with males often presenting earlier than females. The condition involves disturbances in perception, cognition, and affect, and is associated with significant functional impairment
Rationale for correct answers
4. Low prevalence and chronic course distinguish schizophrenia from other listed conditions. Its lifetime prevalence is significantly lower than depressive or anxiety disorders, making it the least common among the options.
Rationale for incorrect answers
1. Major depressive disorder affects approximately 8.3% of U.S. adults annually. It is the most prevalent psychiatric diagnosis, characterized by persistent low mood, anhedonia, and functional impairment.
2. Generalized anxiety disorder has an annual prevalence of around 2.7%. It involves excessive worry and physical symptoms such as restlessness and muscle tension, often co-occurring with other psychiatric conditions.
3. Obsessive-compulsive disorder affects about 1.2% of the population annually. It is marked by intrusive thoughts and repetitive behaviors, with significant distress and impairment in daily functioning.
Take Home Points
- Schizophrenia has the lowest prevalence among major psychiatric disorders in the U.S.
- It presents with psychotic symptoms and requires long-term antipsychotic treatment.
- Major depressive disorder is the most common psychiatric diagnosis.
- OCD and GAD have higher prevalence rates than schizophrenia and involve anxiety-related symptoms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Risk for suicideis the most urgent concern when a client expresses suicidal ideation. Generalized anxiety disorder may elevate suicide risk, especially when compounded by hopelessness and impaired coping. According to DSM-5, suicidal thoughts in the context of anxiety signal acute distress and require immediate safety interventions. The priority in nursing care is always physiological safety, which aligns with Maslow’s hierarchy of needs—preserving life precedes addressing emotional or psychological concerns.
Rationale for correct answers
4. Risk for suicideis the priority diagnosis because the client has verbalized suicidal ideation. This poses an immediate threat to life and demands urgent intervention, including safety planning and continuous monitoring.
Rationale for incorrect answers
1.Hopelessnessis present but secondary to the suicide risk. While the statement reflects despair, it does not override the need to address the client’s safety first.
2.Ineffective copingmay contribute to suicidal ideation, but it is not the most critical concern. Coping strategies can be addressed after ensuring the client is safe.
3.Anxietyis evident, but it is not the priority when suicidal thoughts are expressed. The rating of 9/10 supports severity, but the suicide risk takes precedence.
Take Home Points
- Suicide risk always takes priority in nursing diagnoses when ideation is present.
- Generalized anxiety disorder can escalate to suicidal thoughts, especially when compounded by hopelessness.
- Maslow’s hierarchy places physiological safety above emotional needs.
- Nursing interventions must focus first on safety, then address underlying emotional and cognitive concerns.
Correct Answer is A
Explanation
Generalized anxiety disorderis a chronic psychiatric condition marked by excessive, persistent worry that is difficult to control. It presents with restlessness, irritability, and fatigue, often accompanied by somatic symptoms like muscle tension, sleep disturbance, and autonomic hyperactivity. Diagnostic criteria require symptoms to persist for at least six months and cause functional impairment. Exacerbations may occur during stress or illness, and vital signs may show mild sympathetic activation without reaching pathological thresholds.
Rationale for correct answers
1. Exacerbationof generalized anxiety disorder is supported by the client’s history and current symptoms—restlessness, irritability, and exhaustion—along with mildly elevated vital signs consistent with sympathetic arousal.
Rationale for incorrect answers
2.No evidence of acute medical illness is present; symptoms align with psychiatric etiologyrather than organic pathology.
3.While physical exams are routine, the client’s known diagnosis and symptom pattern already point to a psychiatric cause, making this less immediately relevant.
4.Dosage adjustment requires longitudinal assessment and evaluation of medication adherence, side effects, and therapeutic response—not assumed from a single ED visit.
Take Home Points
- Generalized anxiety disorder presents with chronic worry, restlessness, irritability, and fatigue.
- Mild sympathetic signs like elevated pulse and BP may occur during exacerbations.
- Diagnosis is clinical, based on DSM-5 criteria and exclusion of medical causes.
- Management includes psychotherapy and pharmacotherapy; dosage changes require careful evaluation.
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.
