NR 547 Final Study Guide PMHNP
Questions & Answers
NR 547 Final Study Guide PMHNP Questions & Answers
Examination Overview
This comprehensive 200-question examination is designed to assess the knowledge, clinical
reasoning, and diagnostic decision-making skills required of Psychiatric-Mental Health Nurse
Practitioner (PMHNP) students preparing for the NR 547 final examination. The content emphasizes
differential diagnosis in psychiatric-mental health across the lifespan, DSM-5-TR diagnostic criteria,
psychopharmacological management, advanced practice skills, and professional role competencies.
Questions are distributed across foundational diagnostic reasoning, mood disorders, anxiety and
trauma-related disorders, psychotic disorders, neurocognitive and neurodevelopmental disorders,
personality and substance use disorders, and special populations and professional issues.
Table of Contents
1. Diagnostic Reasoning and Differential Diagnosis Foundations (Q1–Q25)
2. Mood Disorders Across the Lifespan (Q26–Q55)
3. Anxiety, Trauma, and Obsessive-Compulsive Disorders (Q56–Q85)
4. Psychotic and Schizophrenia Spectrum Disorders (Q86–Q110)
5. Neurocognitive and Neurodevelopmental Disorders (Q111–Q135)
6. Personality and Substance Use Disorders (Q136–Q160)
7. Special Populations, Cultural Care, and Professional Issues (Q161–Q200)
Questions 1–200
Q1. A PMHNP is conducting an initial psychiatric evaluation. Which of the following best describes
the primary purpose of the differential diagnosis process?
A. To confirm the patient's self-reported diagnosis
B. To develop a working list of potential disorders that could explain the patient's symptoms
C. To rule out all medical causes of psychiatric symptoms before considering any mental health
diagnosis
D. To assign a single diagnosis that will guide all future treatment decisions
Correct Answer: B. To develop a working list of potential disorders that could explain the patient's
symptoms
Rationale: Differential diagnosis involves generating a prioritized working hypothesis of potential
disorders that could account for presenting symptoms. Each candidate diagnosis is systematically
pg. 1
,ruled in or out based on DSM-5-TR criteria, history, and assessment findings. The process is iterative,
not confirmatory of self-report, not a comprehensive medical rule-out, and does not prematurely
commit to a single diagnosis.
Q2. According to the DSM-5-TR, which of the following must be ruled out before assigning most
psychiatric diagnoses?
A. Childhood trauma history
B. Substance use and other medical conditions
C. Family history of mental illness
D. Recent stressful life events
Correct Answer: B. Substance use and other medical conditions
Rationale: The DSM-5-TR requires clinicians to rule out substance/medication-induced conditions
and other medical conditions as the primary cause of symptoms before assigning a primary
psychiatric diagnosis. Conditions such as hyperthyroidism, electrolyte imbalances, and substance
intoxication can mimic virtually any psychiatric presentation.
Q3. A patient presents with symptoms meeting criteria for multiple disorders. Which step in the
differential diagnosis process involves comparing disorders to identify the best fit?
A. Data gathering only
B. Evaluate criteria and compare/contrast disorders
C. Immediate treatment without diagnosis
D. Referring to specialist without analysis
Correct Answer: B. Evaluate criteria and compare/contrast disorders
Rationale: The differential diagnosis process involves identifying possible diagnoses, gathering data,
evaluating criteria for each disorder, comparing and contrasting to identify distinguishing features,
and making a final diagnosis. Comparison and contrast is essential when multiple disorders appear
to fit the clinical picture.
Q4. A PMHNP is interviewing a patient who describes feeling "down" for the past month. Which
interviewing technique is most appropriate to clarify the diagnostic picture?
A. Immediately diagnosing major depressive disorder based on the statement
B. Using open-ended questions followed by clarifying and summarizing
C. Asking only yes/no questions to speed up the interview
D. Focusing exclusively on family history without exploring current symptoms
Correct Answer: B. Using open-ended questions followed by clarifying and summarizing
Rationale: Effective diagnostic interviewing uses open-ended questions to elicit narrative, followed
by clarifying questions to establish specific symptoms, duration, and functional impairment. This
approach prevents premature diagnostic closure and ensures DSM-5-TR criteria are thoroughly
evaluated.
Q5. A 68-year-old patient presents with new-onset anxiety and insomnia. Which principle should
guide the PMHNP's differential diagnosis process?
A. Assume anxiety is the primary diagnosis
B. Consider medical and medication-related causes first
pg. 2
,C. Prescribe a benzodiazepine immediately
D. Refer for psychotherapy without evaluation
Correct Answer: B. Consider medical and medication-related causes first
Rationale: New-onset psychiatric symptoms in older adults require careful evaluation for medical
causes including thyroid dysfunction, cardiac disease, medication side effects, and substance use.
Anxiety and insomnia are common presentations of medical illness in this population.
Q6. A PMHNP is using the SNAPPs clinical reasoning method. What does the "S" in SNAPPs
represent?
A. Suicidal ideation
B. Symptoms
C. Social determinants
D. Standardized assessment
Correct Answer: B. Symptoms
Rationale: The SNAPPs method (Symptoms, Neurobiology, Assessment, Psychotherapy,
Pharmacotherapy, and Social determinants) provides a structured framework for clinical reasoning.
The "S" represents Symptoms—the initial characterization of the presenting problem.
Q7. A patient reports hearing voices that others do not hear. Which component of the mental status
examination does this finding represent?
A. Mood
B. Perception
C. Cognition
D. Insight
Correct Answer: B. Perception
Rationale: Hallucinations are disturbances of perception. The mental status examination assesses
perception through inquiry about hallucinations across sensory modalities (auditory, visual, tactile,
olfactory, gustatory).
Q8. A PMHNP is evaluating a 10-year-old child with irritability and academic decline. Which factor is
most important to assess in the differential diagnosis?
A. Parental marital status
B. Onset and duration of symptoms
C. Favorite school subject
D. Sibling birth order
Correct Answer: B. Onset and duration of symptoms
Rationale: Establishing the onset and duration of symptoms is critical for differentiating among
mood disorders, anxiety disorders, neurodevelopmental disorders, and adjustment reactions. DSM-
5-TR criteria have specific duration requirements for each disorder.
Q9. A patient presents with depressed mood and anhedonia for three weeks following job loss.
Which diagnosis is most appropriate to consider first?
pg. 3
, A. Major depressive disorder
B. Adjustment disorder with depressed mood
C. Persistent depressive disorder
D. Bipolar II disorder
Correct Answer: B. Adjustment disorder with depressed mood
Rationale: Adjustment disorder is characterized by emotional symptoms in response to an
identifiable stressor, occurring within three months of stressor onset. The three-week duration with
a clear precipitant supports adjustment disorder rather than major depressive disorder, which
requires a two-week duration but no stressor criterion.
Q10. A PMHNP notes that a patient's symptoms are better explained by another mental disorder.
This determination should be documented in which part of the diagnostic formulation?
A. Primary diagnosis
B. Rule-out diagnosis
C. Differential diagnosis
D. Provisional diagnosis
Correct Answer: C. Differential diagnosis
Rationale: The differential diagnosis section documents disorders that were considered but
excluded, including those better explained by another condition. This documentation supports
clinical reasoning and protects against diagnostic error.
Q11. A 45-year-old patient with no psychiatric history presents with first-episode psychosis. Which
initial diagnostic consideration is most critical?
A. Schizophrenia
B. Medical or substance-induced etiology
C. Schizoaffective disorder
D. Delusional disorder
Correct Answer: B. Medical or substance-induced etiology
Rationale: First-episode psychosis in a middle-aged adult without prodromal history warrants urgent
evaluation for medical causes (e.g., delirium, metabolic disorders, autoimmune encephalitis) and
substance-induced psychosis before assuming a primary psychotic disorder.
Q12. The DSM-5-TR uses which approach to psychiatric diagnosis?
A. Etiological classification
B. Psychodynamic formulation
C. Descriptive, criterion-based diagnosis
D. Narrative-based assessment
Correct Answer: C. Descriptive, criterion-based diagnosis
Rationale: DSM-5-TR employs a descriptive, criterion-based approach that specifies required
symptoms, durations, and functional impairment thresholds for each disorder. This approach
enhances diagnostic reliability without claiming etiological certainty.
pg. 4
Questions & Answers
NR 547 Final Study Guide PMHNP Questions & Answers
Examination Overview
This comprehensive 200-question examination is designed to assess the knowledge, clinical
reasoning, and diagnostic decision-making skills required of Psychiatric-Mental Health Nurse
Practitioner (PMHNP) students preparing for the NR 547 final examination. The content emphasizes
differential diagnosis in psychiatric-mental health across the lifespan, DSM-5-TR diagnostic criteria,
psychopharmacological management, advanced practice skills, and professional role competencies.
Questions are distributed across foundational diagnostic reasoning, mood disorders, anxiety and
trauma-related disorders, psychotic disorders, neurocognitive and neurodevelopmental disorders,
personality and substance use disorders, and special populations and professional issues.
Table of Contents
1. Diagnostic Reasoning and Differential Diagnosis Foundations (Q1–Q25)
2. Mood Disorders Across the Lifespan (Q26–Q55)
3. Anxiety, Trauma, and Obsessive-Compulsive Disorders (Q56–Q85)
4. Psychotic and Schizophrenia Spectrum Disorders (Q86–Q110)
5. Neurocognitive and Neurodevelopmental Disorders (Q111–Q135)
6. Personality and Substance Use Disorders (Q136–Q160)
7. Special Populations, Cultural Care, and Professional Issues (Q161–Q200)
Questions 1–200
Q1. A PMHNP is conducting an initial psychiatric evaluation. Which of the following best describes
the primary purpose of the differential diagnosis process?
A. To confirm the patient's self-reported diagnosis
B. To develop a working list of potential disorders that could explain the patient's symptoms
C. To rule out all medical causes of psychiatric symptoms before considering any mental health
diagnosis
D. To assign a single diagnosis that will guide all future treatment decisions
Correct Answer: B. To develop a working list of potential disorders that could explain the patient's
symptoms
Rationale: Differential diagnosis involves generating a prioritized working hypothesis of potential
disorders that could account for presenting symptoms. Each candidate diagnosis is systematically
pg. 1
,ruled in or out based on DSM-5-TR criteria, history, and assessment findings. The process is iterative,
not confirmatory of self-report, not a comprehensive medical rule-out, and does not prematurely
commit to a single diagnosis.
Q2. According to the DSM-5-TR, which of the following must be ruled out before assigning most
psychiatric diagnoses?
A. Childhood trauma history
B. Substance use and other medical conditions
C. Family history of mental illness
D. Recent stressful life events
Correct Answer: B. Substance use and other medical conditions
Rationale: The DSM-5-TR requires clinicians to rule out substance/medication-induced conditions
and other medical conditions as the primary cause of symptoms before assigning a primary
psychiatric diagnosis. Conditions such as hyperthyroidism, electrolyte imbalances, and substance
intoxication can mimic virtually any psychiatric presentation.
Q3. A patient presents with symptoms meeting criteria for multiple disorders. Which step in the
differential diagnosis process involves comparing disorders to identify the best fit?
A. Data gathering only
B. Evaluate criteria and compare/contrast disorders
C. Immediate treatment without diagnosis
D. Referring to specialist without analysis
Correct Answer: B. Evaluate criteria and compare/contrast disorders
Rationale: The differential diagnosis process involves identifying possible diagnoses, gathering data,
evaluating criteria for each disorder, comparing and contrasting to identify distinguishing features,
and making a final diagnosis. Comparison and contrast is essential when multiple disorders appear
to fit the clinical picture.
Q4. A PMHNP is interviewing a patient who describes feeling "down" for the past month. Which
interviewing technique is most appropriate to clarify the diagnostic picture?
A. Immediately diagnosing major depressive disorder based on the statement
B. Using open-ended questions followed by clarifying and summarizing
C. Asking only yes/no questions to speed up the interview
D. Focusing exclusively on family history without exploring current symptoms
Correct Answer: B. Using open-ended questions followed by clarifying and summarizing
Rationale: Effective diagnostic interviewing uses open-ended questions to elicit narrative, followed
by clarifying questions to establish specific symptoms, duration, and functional impairment. This
approach prevents premature diagnostic closure and ensures DSM-5-TR criteria are thoroughly
evaluated.
Q5. A 68-year-old patient presents with new-onset anxiety and insomnia. Which principle should
guide the PMHNP's differential diagnosis process?
A. Assume anxiety is the primary diagnosis
B. Consider medical and medication-related causes first
pg. 2
,C. Prescribe a benzodiazepine immediately
D. Refer for psychotherapy without evaluation
Correct Answer: B. Consider medical and medication-related causes first
Rationale: New-onset psychiatric symptoms in older adults require careful evaluation for medical
causes including thyroid dysfunction, cardiac disease, medication side effects, and substance use.
Anxiety and insomnia are common presentations of medical illness in this population.
Q6. A PMHNP is using the SNAPPs clinical reasoning method. What does the "S" in SNAPPs
represent?
A. Suicidal ideation
B. Symptoms
C. Social determinants
D. Standardized assessment
Correct Answer: B. Symptoms
Rationale: The SNAPPs method (Symptoms, Neurobiology, Assessment, Psychotherapy,
Pharmacotherapy, and Social determinants) provides a structured framework for clinical reasoning.
The "S" represents Symptoms—the initial characterization of the presenting problem.
Q7. A patient reports hearing voices that others do not hear. Which component of the mental status
examination does this finding represent?
A. Mood
B. Perception
C. Cognition
D. Insight
Correct Answer: B. Perception
Rationale: Hallucinations are disturbances of perception. The mental status examination assesses
perception through inquiry about hallucinations across sensory modalities (auditory, visual, tactile,
olfactory, gustatory).
Q8. A PMHNP is evaluating a 10-year-old child with irritability and academic decline. Which factor is
most important to assess in the differential diagnosis?
A. Parental marital status
B. Onset and duration of symptoms
C. Favorite school subject
D. Sibling birth order
Correct Answer: B. Onset and duration of symptoms
Rationale: Establishing the onset and duration of symptoms is critical for differentiating among
mood disorders, anxiety disorders, neurodevelopmental disorders, and adjustment reactions. DSM-
5-TR criteria have specific duration requirements for each disorder.
Q9. A patient presents with depressed mood and anhedonia for three weeks following job loss.
Which diagnosis is most appropriate to consider first?
pg. 3
, A. Major depressive disorder
B. Adjustment disorder with depressed mood
C. Persistent depressive disorder
D. Bipolar II disorder
Correct Answer: B. Adjustment disorder with depressed mood
Rationale: Adjustment disorder is characterized by emotional symptoms in response to an
identifiable stressor, occurring within three months of stressor onset. The three-week duration with
a clear precipitant supports adjustment disorder rather than major depressive disorder, which
requires a two-week duration but no stressor criterion.
Q10. A PMHNP notes that a patient's symptoms are better explained by another mental disorder.
This determination should be documented in which part of the diagnostic formulation?
A. Primary diagnosis
B. Rule-out diagnosis
C. Differential diagnosis
D. Provisional diagnosis
Correct Answer: C. Differential diagnosis
Rationale: The differential diagnosis section documents disorders that were considered but
excluded, including those better explained by another condition. This documentation supports
clinical reasoning and protects against diagnostic error.
Q11. A 45-year-old patient with no psychiatric history presents with first-episode psychosis. Which
initial diagnostic consideration is most critical?
A. Schizophrenia
B. Medical or substance-induced etiology
C. Schizoaffective disorder
D. Delusional disorder
Correct Answer: B. Medical or substance-induced etiology
Rationale: First-episode psychosis in a middle-aged adult without prodromal history warrants urgent
evaluation for medical causes (e.g., delirium, metabolic disorders, autoimmune encephalitis) and
substance-induced psychosis before assuming a primary psychotic disorder.
Q12. The DSM-5-TR uses which approach to psychiatric diagnosis?
A. Etiological classification
B. Psychodynamic formulation
C. Descriptive, criterion-based diagnosis
D. Narrative-based assessment
Correct Answer: C. Descriptive, criterion-based diagnosis
Rationale: DSM-5-TR employs a descriptive, criterion-based approach that specifies required
symptoms, durations, and functional impairment thresholds for each disorder. This approach
enhances diagnostic reliability without claiming etiological certainty.
pg. 4
