NRNP 6635 Psychopathology and Diagnostic Reasoning –
NRNP 6635 Study Guide, Original Practice Questions &
Answers, Comprehensive PMHNP Exam Preparation,
Psychiatric Assessment, Mental Status Examination, DSM-
5-TR, Diagnostic Reasoning, Differential Diagnosis,
Psychopathology, Neurobiology, Mood Disorders, Anxiety
Disorders, Psychotic Disorders, Trauma-Related Disorders,
Substance Use Disorders, Neurodevelopmental Disorders,
Neurocognitive Disorders, Personality Disorders & Clinical
Decision-Making
Question 1: A 45-year-old patient presents with a 6-month history of low
mood, anhedonia, and fatigue. Symptoms began after a stressful job loss.
Which component of the mental status exam is most directly assessed by
noting the patient's slumped posture and lack of eye contact?
A. Thought content
B. Psychomotor behavior
C. Insight
D. Sensorium
CORRECT ANSWER: B. Psychomotor behavior
Rationale: Psychomotor behavior includes observable physical actions and movements
such as posture, eye contact, and motor activity. Slumped posture and poor eye contact
are objective observations of psychomotor changes commonly seen in depressive
disorders. Thought content refers to what the patient is thinking, insight refers to
awareness of illness, and sensorium refers to level of consciousness and orientation .
Question 2: Which ethical principle is most relevant when a psychiatric nurse
practitioner prescribes a medication with known side effects that may impair a
patient's driving ability without discussing it?
A. Beneficence
B. Nonmaleficence
C. Autonomy
D. Justice
CORRECT ANSWER: B. Nonmaleficence
Rationale: Nonmaleficence is the ethical obligation to "do no harm" and to avoid
causing harm to patients. Failing to warn a patient about medication side effects that
could impair driving and lead to harm is a violation of this principle. Beneficence
involves actively doing good, autonomy refers to respecting patient decision-making,
and justice concerns fair distribution of care .
,Question 3: Which neurotransmitter is most directly implicated in the
regulation of mood, appetite, and sleep, and is the primary target of SSRIs?
A. Dopamine
B. Norepinephrine
C. Serotonin
D. Acetylcholine
CORRECT ANSWER: C. Serotonin
Rationale: Serotonin dysregulation is a core mechanism in depressive disorders. The
monoamine hypothesis suggests that decreased serotonin availability contributes to
mood disturbances, sleep changes, and appetite alterations seen in depression. Selective
Serotonin Reuptake Inhibitors (SSRIs) work by increasing serotonin levels in the
synaptic cleft. Dopamine is more closely associated with reward and psychosis, while
norepinephrine is linked to arousal and the "fight-or-flight" response .
Question 4: A patient reports feeling "sad and empty" and has lost interest in
previously enjoyed activities. The nurse practitioner observes the patient
speaking slowly with a flat tone. This is an example of:
A. Labile affect
B. Congruent affect
C. Blunted affect
D. Inappropriate affect
CORRECT ANSWER: B. Congruent affect
Rationale: When a patient's reported mood matches the observed emotional
expression, it is considered a congruent affect. The patient's report of sadness is
consistent with the observed flat, slow speech, indicating a congruency between
subjective experience and objective presentation. Labile affect involves rapid,
unpredictable shifts in emotion, blunted affect is a severe reduction in emotional
expression, and inappropriate affect is a disconnect between expressed emotion and the
content of the discussion .
Question 5: Select the most frequent genetic cause of intellectual disability in
infants and children.
A. Fragile X syndrome
B. Phenylketonuria
C. Down syndrome
D. Rett syndrome
CORRECT ANSWER: C. Down syndrome
,Rationale: Down syndrome, caused by trisomy 21, is the most frequent genetic cause
of intellectual disability in infants and children. While Fragile X syndrome is the most
common inherited cause, Down syndrome has a higher overall prevalence due to its
high incidence. Phenylketonuria is a metabolic cause, and Rett syndrome primarily
affects females and is less common .
Question 6: A 25-year-old patient exhibits grandiosity, decreased need for
sleep, and risky behaviors for 5 days. What is the most likely diagnosis?
A. Bipolar I Disorder, Manic Episode
B. Bipolar II Disorder
C. Cyclothymic Disorder
D. Borderline Personality Disorder
CORRECT ANSWER: A. Bipolar I Disorder, Manic Episode
Rationale: A manic episode requires a distinct period of abnormally and persistently
elevated, expansive, or irritable mood and increased goal-directed activity or energy
lasting at least one week. Symptoms include grandiosity, decreased need for sleep, and
excessive involvement in activities with high potential for painful consequences. Bipolar
II involves hypomania (lasting at least 4 days), not mania, and cyclothymic disorder
involves chronic fluctuating mood disturbances without meeting full criteria for a major
episode .
Question 7: What is the minimum duration for a diagnosis of Generalized
Anxiety Disorder (GAD) per DSM-5-TR?
A. 1 month
B. 3 months
C. 6 months
D. 12 months
CORRECT ANSWER: C. 6 months
Rationale: DSM-5-TR requires excessive anxiety and worry about various events or
activities to be present for at least 6 months, occurring more days than not. The
individual must also find it difficult to control the worry and have at least three
associated symptoms like restlessness, fatigue, or irritability. Shorter durations may
suggest adjustment disorder or other anxiety conditions .
Question 8: A patient presents with persistent, uncontrollable worry about
multiple events for 8 months, along with muscle tension and sleep
disturbance. What is the most appropriate diagnosis?
, A. Panic Disorder
B. Generalized Anxiety Disorder
C. Social Anxiety Disorder
D. Obsessive-Compulsive Disorder
CORRECT ANSWER: B. Generalized Anxiety Disorder
Rationale: The patient's excessive, uncontrollable worry lasting more than 6 months,
coupled with physical symptoms like muscle tension and sleep disturbance, meets the
DSM-5-TR criteria for Generalized Anxiety Disorder. Panic Disorder is characterized by
recurrent unexpected panic attacks, Social Anxiety Disorder involves fear of social
scrutiny, and OCD involves obsessions and compulsions .
Question 9: Which symptom is a hallmark of Post-Traumatic Stress Disorder
(PTSD) according to DSM-5-TR?
A. Intrusive memories
B. Grandiosity
C. Compulsions
D. Derealization
CORRECT ANSWER: A. Intrusive memories
Rationale: Intrusive memories, such as recurrent, involuntary, and distressing
memories of a traumatic event, are a core symptom of PTSD as defined by DSM-5-TR.
These memories are often accompanied by physiological reactions and emotional
distress. Grandiosity is characteristic of mania, compulsions are seen in OCD, and
derealization is a dissociative symptom that can occur in PTSD but is not the hallmark .
Question 10: Which neurotransmitter system is most associated with the
addictive rewarding properties of opioids?
A. Serotonergic
B. Dopaminergic
C. GABAergic
D. Glutamatergic
CORRECT ANSWER: B. Dopaminergic
Rationale: The dopaminergic system, specifically the mesolimbic pathway, is central to
the rewarding and reinforcing properties of addictive substances, including opioids.
Opioid use leads to a surge of dopamine in the nucleus accumbens, reinforcing the
behavior and contributing to the development of addiction. While other systems like
serotonin and GABA are involved, the dopaminergic system is primarily associated with
the "reward" pathway .
NRNP 6635 Study Guide, Original Practice Questions &
Answers, Comprehensive PMHNP Exam Preparation,
Psychiatric Assessment, Mental Status Examination, DSM-
5-TR, Diagnostic Reasoning, Differential Diagnosis,
Psychopathology, Neurobiology, Mood Disorders, Anxiety
Disorders, Psychotic Disorders, Trauma-Related Disorders,
Substance Use Disorders, Neurodevelopmental Disorders,
Neurocognitive Disorders, Personality Disorders & Clinical
Decision-Making
Question 1: A 45-year-old patient presents with a 6-month history of low
mood, anhedonia, and fatigue. Symptoms began after a stressful job loss.
Which component of the mental status exam is most directly assessed by
noting the patient's slumped posture and lack of eye contact?
A. Thought content
B. Psychomotor behavior
C. Insight
D. Sensorium
CORRECT ANSWER: B. Psychomotor behavior
Rationale: Psychomotor behavior includes observable physical actions and movements
such as posture, eye contact, and motor activity. Slumped posture and poor eye contact
are objective observations of psychomotor changes commonly seen in depressive
disorders. Thought content refers to what the patient is thinking, insight refers to
awareness of illness, and sensorium refers to level of consciousness and orientation .
Question 2: Which ethical principle is most relevant when a psychiatric nurse
practitioner prescribes a medication with known side effects that may impair a
patient's driving ability without discussing it?
A. Beneficence
B. Nonmaleficence
C. Autonomy
D. Justice
CORRECT ANSWER: B. Nonmaleficence
Rationale: Nonmaleficence is the ethical obligation to "do no harm" and to avoid
causing harm to patients. Failing to warn a patient about medication side effects that
could impair driving and lead to harm is a violation of this principle. Beneficence
involves actively doing good, autonomy refers to respecting patient decision-making,
and justice concerns fair distribution of care .
,Question 3: Which neurotransmitter is most directly implicated in the
regulation of mood, appetite, and sleep, and is the primary target of SSRIs?
A. Dopamine
B. Norepinephrine
C. Serotonin
D. Acetylcholine
CORRECT ANSWER: C. Serotonin
Rationale: Serotonin dysregulation is a core mechanism in depressive disorders. The
monoamine hypothesis suggests that decreased serotonin availability contributes to
mood disturbances, sleep changes, and appetite alterations seen in depression. Selective
Serotonin Reuptake Inhibitors (SSRIs) work by increasing serotonin levels in the
synaptic cleft. Dopamine is more closely associated with reward and psychosis, while
norepinephrine is linked to arousal and the "fight-or-flight" response .
Question 4: A patient reports feeling "sad and empty" and has lost interest in
previously enjoyed activities. The nurse practitioner observes the patient
speaking slowly with a flat tone. This is an example of:
A. Labile affect
B. Congruent affect
C. Blunted affect
D. Inappropriate affect
CORRECT ANSWER: B. Congruent affect
Rationale: When a patient's reported mood matches the observed emotional
expression, it is considered a congruent affect. The patient's report of sadness is
consistent with the observed flat, slow speech, indicating a congruency between
subjective experience and objective presentation. Labile affect involves rapid,
unpredictable shifts in emotion, blunted affect is a severe reduction in emotional
expression, and inappropriate affect is a disconnect between expressed emotion and the
content of the discussion .
Question 5: Select the most frequent genetic cause of intellectual disability in
infants and children.
A. Fragile X syndrome
B. Phenylketonuria
C. Down syndrome
D. Rett syndrome
CORRECT ANSWER: C. Down syndrome
,Rationale: Down syndrome, caused by trisomy 21, is the most frequent genetic cause
of intellectual disability in infants and children. While Fragile X syndrome is the most
common inherited cause, Down syndrome has a higher overall prevalence due to its
high incidence. Phenylketonuria is a metabolic cause, and Rett syndrome primarily
affects females and is less common .
Question 6: A 25-year-old patient exhibits grandiosity, decreased need for
sleep, and risky behaviors for 5 days. What is the most likely diagnosis?
A. Bipolar I Disorder, Manic Episode
B. Bipolar II Disorder
C. Cyclothymic Disorder
D. Borderline Personality Disorder
CORRECT ANSWER: A. Bipolar I Disorder, Manic Episode
Rationale: A manic episode requires a distinct period of abnormally and persistently
elevated, expansive, or irritable mood and increased goal-directed activity or energy
lasting at least one week. Symptoms include grandiosity, decreased need for sleep, and
excessive involvement in activities with high potential for painful consequences. Bipolar
II involves hypomania (lasting at least 4 days), not mania, and cyclothymic disorder
involves chronic fluctuating mood disturbances without meeting full criteria for a major
episode .
Question 7: What is the minimum duration for a diagnosis of Generalized
Anxiety Disorder (GAD) per DSM-5-TR?
A. 1 month
B. 3 months
C. 6 months
D. 12 months
CORRECT ANSWER: C. 6 months
Rationale: DSM-5-TR requires excessive anxiety and worry about various events or
activities to be present for at least 6 months, occurring more days than not. The
individual must also find it difficult to control the worry and have at least three
associated symptoms like restlessness, fatigue, or irritability. Shorter durations may
suggest adjustment disorder or other anxiety conditions .
Question 8: A patient presents with persistent, uncontrollable worry about
multiple events for 8 months, along with muscle tension and sleep
disturbance. What is the most appropriate diagnosis?
, A. Panic Disorder
B. Generalized Anxiety Disorder
C. Social Anxiety Disorder
D. Obsessive-Compulsive Disorder
CORRECT ANSWER: B. Generalized Anxiety Disorder
Rationale: The patient's excessive, uncontrollable worry lasting more than 6 months,
coupled with physical symptoms like muscle tension and sleep disturbance, meets the
DSM-5-TR criteria for Generalized Anxiety Disorder. Panic Disorder is characterized by
recurrent unexpected panic attacks, Social Anxiety Disorder involves fear of social
scrutiny, and OCD involves obsessions and compulsions .
Question 9: Which symptom is a hallmark of Post-Traumatic Stress Disorder
(PTSD) according to DSM-5-TR?
A. Intrusive memories
B. Grandiosity
C. Compulsions
D. Derealization
CORRECT ANSWER: A. Intrusive memories
Rationale: Intrusive memories, such as recurrent, involuntary, and distressing
memories of a traumatic event, are a core symptom of PTSD as defined by DSM-5-TR.
These memories are often accompanied by physiological reactions and emotional
distress. Grandiosity is characteristic of mania, compulsions are seen in OCD, and
derealization is a dissociative symptom that can occur in PTSD but is not the hallmark .
Question 10: Which neurotransmitter system is most associated with the
addictive rewarding properties of opioids?
A. Serotonergic
B. Dopaminergic
C. GABAergic
D. Glutamatergic
CORRECT ANSWER: B. Dopaminergic
Rationale: The dopaminergic system, specifically the mesolimbic pathway, is central to
the rewarding and reinforcing properties of addictive substances, including opioids.
Opioid use leads to a surge of dopamine in the nucleus accumbens, reinforcing the
behavior and contributing to the development of addiction. While other systems like
serotonin and GABA are involved, the dopaminergic system is primarily associated with
the "reward" pathway .
