Barkley PMHNP Chapter Quiz 12:
Schizophrenia Spectrum and Other Psychotic
Disorders Comprehensive 150-Question
Multiple-Choice Examination a well detailed
one written and graded A+
upgraded
Section 1: Epidemiology and Etiology (Questions 1–20)
1. A 22-year-old male presents with his first episode of psychosis. He reports hearing voices
commenting on his behavior and believes that the FBI is monitoring his thoughts. Which of
the following demographic factors is most strongly associated with an increased risk of
developing schizophrenia?
• A) Female gender
• B) Advanced parental age at time of conception
• C) Higher socioeconomic status
• D) Urban upbringing during childhood
Correct Answer: D – Urban upbringing is a well-established environmental risk factor for
schizophrenia. Advanced paternal age is also a risk factor, but urban upbringing has a stronger
epidemiological association. Female gender and higher socioeconomic status are not associated
with increased risk.
2. A 28-year-old patient with schizophrenia is being evaluated for genetic contributions to his
illness. Which of the following statements best describes the heritability of schizophrenia?
, • A) Schizophrenia is caused by a single dominant gene mutation
• B) The concordance rate for monozygotic twins is approximately 50%
• C) First-degree relatives have a 25% lifetime risk of developing schizophrenia
• D) There is no evidence of genetic transmission in schizophrenia
Correct Answer: B – The concordance rate for monozygotic twins is approximately 50%,
indicating strong genetic heritability. Schizophrenia is polygenic, not caused by a single gene.
First-degree relatives have a 10% lifetime risk, not 25%.
3. A PMHNP is educating a patient's family about the neurobiological basis of schizophrenia.
Which of the following structural brain abnormalities is most consistently found in patients
with schizophrenia?
• A) Enlarged hippocampus
• B) Reduced ventricular size
• C) Enlarged lateral ventricles and reduced cortical gray matter
• D) Increased cerebellar volume
Correct Answer: C – Enlarged lateral ventricles and reduced cortical gray matter are among the
most consistently reported structural abnormalities in schizophrenia. The hippocampus is
typically reduced in volume, not enlarged.
4. A 19-year-old male is brought to the clinic by his parents due to declining academic
performance and social withdrawal over the past 8 months. He has started to believe that his
classmates are plotting against him. Which phase of schizophrenia is this patient most likely
experiencing?
• A) Prodromal phase
• B) Active/psychotic phase
• C) Residual phase
• D) Premorbid phase
Correct Answer: A – The prodromal phase is characterized by gradual onset of social
withdrawal, declining function, and subtle psychotic-like experiences that precede the full
,psychotic episode. This patient's 8-month decline with emerging paranoia without full-blown
psychosis is consistent with the prodromal phase.
5. Which of the following neurotransmitters is most strongly implicated in the
pathophysiology of schizophrenia based on the dopamine hypothesis?
• A) Increased dopamine activity in the mesolimbic pathway
• B) Decreased dopamine activity in the mesocortical pathway
• C) Both A and B
• D) Increased serotonin activity in the prefrontal cortex
Correct Answer: C – The dopamine hypothesis posits hyperdopaminergia in the mesolimbic
pathway (contributing to positive symptoms) and hypodopaminergia in the mesocortical
pathway (contributing to negative symptoms).
6. A 32-year-old patient with schizophrenia has been nonadherent with antipsychotic
medications. His family asks about the risk of relapse. Which of the following is the most
significant predictor of relapse in schizophrenia?
• A) Medication nonadherence
• B) Family history of schizophrenia
• C) Male gender
• D) Early age of onset
Correct Answer: A – Medication nonadherence is the single most significant predictor of relapse
in schizophrenia. Early age of onset and male gender are associated with poorer prognosis but
are not as strong predictors of relapse as nonadherence.
7. A PMHNP is reviewing the neurodevelopmental model of schizophrenia with a group of
students. According to this model, which of the following is a key feature?
• A) Onset is typically in late adulthood
• B) Genetic and environmental factors interact during critical periods of brain
development
, • C) Symptoms are entirely reversible with early intervention
• D) The disorder is primarily caused by psychosocial stressors
Correct Answer: B – The neurodevelopmental model emphasizes that schizophrenia results
from the interaction of genetic vulnerability and environmental insults during critical periods of
brain development. Onset is typically in late adolescence or early adulthood.
8. A 45-year-old patient with schizophrenia has been stable on risperidone for 5 years. Which
of the following factors would most increase this patient's risk for developing tardive
dyskinesia?
• A) Female gender
• B) Older age
• C) Low-dose antipsychotic treatment
• D) Short duration of antipsychotic treatment
Correct Answer: B – Older age is a significant risk factor for tardive dyskinesia. Female gender is
also a risk factor, but older age is more consistently associated. Longer duration and higher
doses increase risk.
9. A 24-year-old patient with first-episode schizophrenia is being started on antipsychotic
medication. Which of the following best describes the expected response to treatment?
• A) Complete resolution of all symptoms within 2 weeks
• B) Positive symptoms typically respond better than negative symptoms
• C) Negative symptoms typically respond better than positive symptoms
• D) No response is expected before 6 months of treatment
Correct Answer: B – Positive symptoms (hallucinations, delusions) generally respond better to
antipsychotic treatment than negative symptoms (avolition, alogia, affective blunting).
10. A 30-year-old patient with schizophrenia is noted to have involuntary movements of the
tongue and facial muscles. The PMHNP recognizes this as tardive dyskinesia. Which of the
following medications is most likely to worsen this condition?
Schizophrenia Spectrum and Other Psychotic
Disorders Comprehensive 150-Question
Multiple-Choice Examination a well detailed
one written and graded A+
upgraded
Section 1: Epidemiology and Etiology (Questions 1–20)
1. A 22-year-old male presents with his first episode of psychosis. He reports hearing voices
commenting on his behavior and believes that the FBI is monitoring his thoughts. Which of
the following demographic factors is most strongly associated with an increased risk of
developing schizophrenia?
• A) Female gender
• B) Advanced parental age at time of conception
• C) Higher socioeconomic status
• D) Urban upbringing during childhood
Correct Answer: D – Urban upbringing is a well-established environmental risk factor for
schizophrenia. Advanced paternal age is also a risk factor, but urban upbringing has a stronger
epidemiological association. Female gender and higher socioeconomic status are not associated
with increased risk.
2. A 28-year-old patient with schizophrenia is being evaluated for genetic contributions to his
illness. Which of the following statements best describes the heritability of schizophrenia?
, • A) Schizophrenia is caused by a single dominant gene mutation
• B) The concordance rate for monozygotic twins is approximately 50%
• C) First-degree relatives have a 25% lifetime risk of developing schizophrenia
• D) There is no evidence of genetic transmission in schizophrenia
Correct Answer: B – The concordance rate for monozygotic twins is approximately 50%,
indicating strong genetic heritability. Schizophrenia is polygenic, not caused by a single gene.
First-degree relatives have a 10% lifetime risk, not 25%.
3. A PMHNP is educating a patient's family about the neurobiological basis of schizophrenia.
Which of the following structural brain abnormalities is most consistently found in patients
with schizophrenia?
• A) Enlarged hippocampus
• B) Reduced ventricular size
• C) Enlarged lateral ventricles and reduced cortical gray matter
• D) Increased cerebellar volume
Correct Answer: C – Enlarged lateral ventricles and reduced cortical gray matter are among the
most consistently reported structural abnormalities in schizophrenia. The hippocampus is
typically reduced in volume, not enlarged.
4. A 19-year-old male is brought to the clinic by his parents due to declining academic
performance and social withdrawal over the past 8 months. He has started to believe that his
classmates are plotting against him. Which phase of schizophrenia is this patient most likely
experiencing?
• A) Prodromal phase
• B) Active/psychotic phase
• C) Residual phase
• D) Premorbid phase
Correct Answer: A – The prodromal phase is characterized by gradual onset of social
withdrawal, declining function, and subtle psychotic-like experiences that precede the full
,psychotic episode. This patient's 8-month decline with emerging paranoia without full-blown
psychosis is consistent with the prodromal phase.
5. Which of the following neurotransmitters is most strongly implicated in the
pathophysiology of schizophrenia based on the dopamine hypothesis?
• A) Increased dopamine activity in the mesolimbic pathway
• B) Decreased dopamine activity in the mesocortical pathway
• C) Both A and B
• D) Increased serotonin activity in the prefrontal cortex
Correct Answer: C – The dopamine hypothesis posits hyperdopaminergia in the mesolimbic
pathway (contributing to positive symptoms) and hypodopaminergia in the mesocortical
pathway (contributing to negative symptoms).
6. A 32-year-old patient with schizophrenia has been nonadherent with antipsychotic
medications. His family asks about the risk of relapse. Which of the following is the most
significant predictor of relapse in schizophrenia?
• A) Medication nonadherence
• B) Family history of schizophrenia
• C) Male gender
• D) Early age of onset
Correct Answer: A – Medication nonadherence is the single most significant predictor of relapse
in schizophrenia. Early age of onset and male gender are associated with poorer prognosis but
are not as strong predictors of relapse as nonadherence.
7. A PMHNP is reviewing the neurodevelopmental model of schizophrenia with a group of
students. According to this model, which of the following is a key feature?
• A) Onset is typically in late adulthood
• B) Genetic and environmental factors interact during critical periods of brain
development
, • C) Symptoms are entirely reversible with early intervention
• D) The disorder is primarily caused by psychosocial stressors
Correct Answer: B – The neurodevelopmental model emphasizes that schizophrenia results
from the interaction of genetic vulnerability and environmental insults during critical periods of
brain development. Onset is typically in late adolescence or early adulthood.
8. A 45-year-old patient with schizophrenia has been stable on risperidone for 5 years. Which
of the following factors would most increase this patient's risk for developing tardive
dyskinesia?
• A) Female gender
• B) Older age
• C) Low-dose antipsychotic treatment
• D) Short duration of antipsychotic treatment
Correct Answer: B – Older age is a significant risk factor for tardive dyskinesia. Female gender is
also a risk factor, but older age is more consistently associated. Longer duration and higher
doses increase risk.
9. A 24-year-old patient with first-episode schizophrenia is being started on antipsychotic
medication. Which of the following best describes the expected response to treatment?
• A) Complete resolution of all symptoms within 2 weeks
• B) Positive symptoms typically respond better than negative symptoms
• C) Negative symptoms typically respond better than positive symptoms
• D) No response is expected before 6 months of treatment
Correct Answer: B – Positive symptoms (hallucinations, delusions) generally respond better to
antipsychotic treatment than negative symptoms (avolition, alogia, affective blunting).
10. A 30-year-old patient with schizophrenia is noted to have involuntary movements of the
tongue and facial muscles. The PMHNP recognizes this as tardive dyskinesia. Which of the
following medications is most likely to worsen this condition?
