NR 547 Midterm Exam 2025| Chamberlain
University| Actual Exam Questions and
Correct Answers
Question 1
Which factor has the strongest evidence as the cause of schizophrenia?
A) Environmental stressors
B) Genetics
C) Neurotransmitter imbalances
D) Traumatic brain injury
Correct Answer: B) Genetics
Explanation: Genetics has the strongest evidence as a cause of schizophrenia. Studies show
that individuals with a first-degree relative with schizophrenia have a significantly higher risk
(about 10%) compared to the general population (1%). Twin studies indicate heritability rates of
70-80%, highlighting a strong genetic component, though environmental factors also play a role.
Question 2
Which disorder occurs in 10-20% of all men and comprises more than 50% of all men rated for
sexual dysfunction?
A) Premature ejaculation
B) Erectile dysfunction
C) Male hypoactive sexual desire disorder
D) Delayed ejaculation
Correct Answer: B) Erectile dysfunction
Explanation: Erectile dysfunction (ED) affects approximately 10-20% of men and accounts
for over 50% of sexual dysfunction cases in men. It is the most common sexual dysfunction,
often linked to vascular, neurological, or psychological factors, and its prevalence increases with
age.
,Question 3
All clients below have a family history of schizophrenia. Which client would be most likely to
experience symptoms?
A) A 45-year-old with no recent stressors
B) A 19-year-old who just lost his mother
C) A 30-year-old with stable employment
D) A 25-year-old with no history of trauma
Correct Answer: B) A 19-year-old who just lost his mother
Explanation: Schizophrenia typically emerges in late adolescence or early adulthood (ages
15-25). The 19-year-old is within this high-risk age range, and the recent loss of his mother, a
significant stressor, may trigger symptoms in someone with a genetic predisposition. Stressful
life events are known to precipitate psychotic episodes in vulnerable individuals.
Question 4
Which disorder commonly occurs secondary to agoraphobia?
A) Generalized anxiety disorder
B) Depressive disorder and substance use disorders
C) Specific phobia
D) Avoidant personality disorder
Correct Answer: B) Depressive disorder and substance use disorders
Explanation: Agoraphobia, characterized by fear of situations where escape might be
difficult, often leads to social isolation and distress, increasing the risk of secondary depressive
disorders and substance use disorders as coping mechanisms. Specific phobias and avoidant
personality disorder are distinct diagnoses and not typically secondary to agoraphobia.
Question 5
Which factor would rule out a diagnosis of schizophrenia disorder?
A) The client experienced symptoms intermittently for only 18 months
B) The client has a history of substance use
C) The client responds well to antipsychotic medication
, D) The client has a family history of mood disorders
Correct Answer: A) The client experienced symptoms intermittently for only 18 months
Explanation: According to DSM-5 criteria, a diagnosis of schizophrenia requires continuous
signs of the disturbance for at least 6 months, including at least 1 month of active-phase
symptoms (e.g., delusions, hallucinations). If symptoms are intermittent and do not meet this
duration, schizophrenia is ruled out, though other diagnoses like schizophreniform disorder may
be considered.
Question 6
A 35-year-old male presents for a transfer of care with a previous diagnosis of anxiety. During
the interview, multiple red excoriations are noted on his arms. The client denies substance abuse,
tactile hallucinations, or recent infections. He states he picks at his skin when nervous or bored.
What is the client’s most likely diagnosis?
A) Obsessive-compulsive disorder
B) Excoriation (skin-picking) disorder
C) Body dysmorphic disorder
D) Generalized anxiety disorder
Correct Answer: B) Excoriation (skin-picking) disorder
Explanation: Excoriation disorder is characterized by repetitive skin picking leading to skin
lesions, often triggered by emotional states like anxiety or boredom. The client’s behavior of
picking when nervous or bored, resulting in visible excoriations, aligns with this diagnosis. OCD
or body dysmorphic disorder may involve repetitive behaviors, but skin picking is not their
primary feature.
Question 7
A client presents with symptoms of depression. Which laboratory test result indicates a possible
medical cause?
A) Hematocrit of 29% (reference range: 36-50%)
B) Thyroid-stimulating hormone (TSH) of 2.5 mIU/L
C) Fasting glucose of 90 mg/dL
D) Sodium of 140 mmol/L
Correct Answer: A) Hematocrit of 29%
University| Actual Exam Questions and
Correct Answers
Question 1
Which factor has the strongest evidence as the cause of schizophrenia?
A) Environmental stressors
B) Genetics
C) Neurotransmitter imbalances
D) Traumatic brain injury
Correct Answer: B) Genetics
Explanation: Genetics has the strongest evidence as a cause of schizophrenia. Studies show
that individuals with a first-degree relative with schizophrenia have a significantly higher risk
(about 10%) compared to the general population (1%). Twin studies indicate heritability rates of
70-80%, highlighting a strong genetic component, though environmental factors also play a role.
Question 2
Which disorder occurs in 10-20% of all men and comprises more than 50% of all men rated for
sexual dysfunction?
A) Premature ejaculation
B) Erectile dysfunction
C) Male hypoactive sexual desire disorder
D) Delayed ejaculation
Correct Answer: B) Erectile dysfunction
Explanation: Erectile dysfunction (ED) affects approximately 10-20% of men and accounts
for over 50% of sexual dysfunction cases in men. It is the most common sexual dysfunction,
often linked to vascular, neurological, or psychological factors, and its prevalence increases with
age.
,Question 3
All clients below have a family history of schizophrenia. Which client would be most likely to
experience symptoms?
A) A 45-year-old with no recent stressors
B) A 19-year-old who just lost his mother
C) A 30-year-old with stable employment
D) A 25-year-old with no history of trauma
Correct Answer: B) A 19-year-old who just lost his mother
Explanation: Schizophrenia typically emerges in late adolescence or early adulthood (ages
15-25). The 19-year-old is within this high-risk age range, and the recent loss of his mother, a
significant stressor, may trigger symptoms in someone with a genetic predisposition. Stressful
life events are known to precipitate psychotic episodes in vulnerable individuals.
Question 4
Which disorder commonly occurs secondary to agoraphobia?
A) Generalized anxiety disorder
B) Depressive disorder and substance use disorders
C) Specific phobia
D) Avoidant personality disorder
Correct Answer: B) Depressive disorder and substance use disorders
Explanation: Agoraphobia, characterized by fear of situations where escape might be
difficult, often leads to social isolation and distress, increasing the risk of secondary depressive
disorders and substance use disorders as coping mechanisms. Specific phobias and avoidant
personality disorder are distinct diagnoses and not typically secondary to agoraphobia.
Question 5
Which factor would rule out a diagnosis of schizophrenia disorder?
A) The client experienced symptoms intermittently for only 18 months
B) The client has a history of substance use
C) The client responds well to antipsychotic medication
, D) The client has a family history of mood disorders
Correct Answer: A) The client experienced symptoms intermittently for only 18 months
Explanation: According to DSM-5 criteria, a diagnosis of schizophrenia requires continuous
signs of the disturbance for at least 6 months, including at least 1 month of active-phase
symptoms (e.g., delusions, hallucinations). If symptoms are intermittent and do not meet this
duration, schizophrenia is ruled out, though other diagnoses like schizophreniform disorder may
be considered.
Question 6
A 35-year-old male presents for a transfer of care with a previous diagnosis of anxiety. During
the interview, multiple red excoriations are noted on his arms. The client denies substance abuse,
tactile hallucinations, or recent infections. He states he picks at his skin when nervous or bored.
What is the client’s most likely diagnosis?
A) Obsessive-compulsive disorder
B) Excoriation (skin-picking) disorder
C) Body dysmorphic disorder
D) Generalized anxiety disorder
Correct Answer: B) Excoriation (skin-picking) disorder
Explanation: Excoriation disorder is characterized by repetitive skin picking leading to skin
lesions, often triggered by emotional states like anxiety or boredom. The client’s behavior of
picking when nervous or bored, resulting in visible excoriations, aligns with this diagnosis. OCD
or body dysmorphic disorder may involve repetitive behaviors, but skin picking is not their
primary feature.
Question 7
A client presents with symptoms of depression. Which laboratory test result indicates a possible
medical cause?
A) Hematocrit of 29% (reference range: 36-50%)
B) Thyroid-stimulating hormone (TSH) of 2.5 mIU/L
C) Fasting glucose of 90 mg/dL
D) Sodium of 140 mmol/L
Correct Answer: A) Hematocrit of 29%
