NR547 FINAL EXAM LATEST 2026/2027 | Differential
Diagnosis Psychiatric-Mental Health Across Lifespan |
Weeks 5-8 Practicum Exam Review | Complete Guide |
Chamberlain | Pass Guaranteed - A+ Graded
[Section 1: Weeks 5-8 Overview & Differential Diagnosis Process
Review (Questions 1-8)]
Question 1
According to the DSM-5-TR differential diagnosis hierarchy, which step should be
completed FIRST before determining a primary mental disorder?
A. Determine the specific primary mental disorder based on symptom clusters
B. Rule out malingering and factitious disorder [CORRECT]
C. Rule out substance/medication-induced conditions
D. Rule out medical conditions that may explain symptoms
Rationale: The DSM-5-TR differential diagnosis hierarchy prioritizes ruling out
malingering and factitious disorder first, as these involve intentional deception that
must be distinguished from genuine psychopathology. Step 2 rules out
substance/medication-induced conditions (Option C), and Step 3 rules out medical
conditions (Option D). Step 4 determines the specific primary mental disorder (Option
A). This hierarchy ensures that organic, intentional, and iatrogenic causes are excluded
before assigning a primary psychiatric diagnosis, following evidence-based diagnostic
reasoning emphasized in Chamberlain NR547 Weeks 5-8.
,Correct Answer: B
Question 2
A 28-year-old patient presents with symptoms of depression, anxiety, and insomnia. The
PMHNP learns the patient recently started taking prednisone for asthma exacerbation.
Which differential diagnosis principle applies?
A. Assign major depressive disorder as the primary diagnosis
B. Rule out substance/medication-induced mental disorder before assigning primary
diagnosis [CORRECT]
C. Assign generalized anxiety disorder and treat with SSRI
D. Order a urine drug screen to rule out illicit substance use
Rationale: Prednisone is a corticosteroid known to cause mood disturbances, anxiety,
and insomnia. Per the DSM-5-TR hierarchy, substance/medication-induced mental
disorders must be ruled out before diagnosing a primary mental disorder. The temporal
relationship between prednisone initiation and symptom onset is critical. Option A and
C prematurely assign primary diagnoses without considering iatrogenic causes. Option
D, while potentially useful, does not address the known medication effect. The PMHNP
should evaluate whether symptoms exceed expected medication effects and whether
they persist after discontinuation.
Correct Answer: B
Question 3
Which screening tool is MOST appropriate for assessing suicide risk in a patient
presenting to the psychiatric emergency department?
A. PHQ-9 (Patient Health Questionnaire-9)
,B. GAD-7 (Generalized Anxiety Disorder-7)
C. C-SSRS (Columbia-Suicide Severity Rating Scale) [CORRECT]
D. AUDIT (Alcohol Use Disorders Identification Test)
Rationale: The C-SSRS is the gold standard for suicide risk assessment, evaluating
suicidal ideation, intent, plan, and behavior. It is validated across clinical settings and
populations. The PHQ-9 (Option A) screens for depression severity with one suicide
item but is not comprehensive for suicide risk. The GAD-7 (Option B) assesses anxiety
severity. The AUDIT (Option D) screens for alcohol use disorders. In NR547 Weeks 5-8,
the C-SSRS is emphasized for systematic suicide risk stratification in differential
diagnosis.
Correct Answer: C
Question 4
The Cultural Formulation Interview (CFI) is used in psychiatric differential diagnosis
primarily to:
A. Determine if the patient meets criteria for a cultural-bound syndrome
B. Assess how cultural identity, explanations, and contextual factors influence symptom
presentation and care [CORRECT]
C. Rule out medical conditions common in the patient's ethnic group
D. Assign a more severe diagnosis based on cultural stressors
Rationale: The DSM-5-TR CFI is a semi-structured interview that explores cultural
identity, conceptualizations of distress, psychosocial stressors, and features of
vulnerability and resilience. It informs culturally responsive diagnosis and treatment
without pathologizing cultural differences. Option A is too narrow; the CFI addresses
more than cultural syndromes. Option C describes medical workup, not cultural
formulation. Option D misrepresents the CFI's purpose—it does not increase severity but
, contextualizes presentation. Cultural formulation is integral to NR547's lifespan and
diversity emphasis.
Correct Answer: B
Question 5
A 65-year-old patient presents with acute confusion, fluctuating attention, and visual
hallucinations developing over 48 hours after hip replacement surgery. Which diagnosis
is most likely?
A. Major neurocognitive disorder (dementia)
B. Delirium [CORRECT]
C. Brief psychotic disorder
D. Schizophrenia
Rationale: Delirium is characterized by acute onset (hours to days), fluctuating attention
and awareness, and additional cognitive disturbances, often precipitated by medical
conditions, surgery, or medications. The postoperative status is a classic risk factor.
Major neurocognitive disorder (Option A) has gradual onset and progressive course
without fluctuation. Brief psychotic disorder (Option C) lacks the attentional disturbance
and medical precipitant. Schizophrenia (Option D) has chronic course with onset
typically in late adolescence/early adulthood. Differentiating delirium from dementia is a
core NR547 Weeks 5-6 competency.
Correct Answer: B
Question 6
Which of the following is NOT a required component for diagnosing substance use
disorder (SUD) according to DSM-5-TR?
Diagnosis Psychiatric-Mental Health Across Lifespan |
Weeks 5-8 Practicum Exam Review | Complete Guide |
Chamberlain | Pass Guaranteed - A+ Graded
[Section 1: Weeks 5-8 Overview & Differential Diagnosis Process
Review (Questions 1-8)]
Question 1
According to the DSM-5-TR differential diagnosis hierarchy, which step should be
completed FIRST before determining a primary mental disorder?
A. Determine the specific primary mental disorder based on symptom clusters
B. Rule out malingering and factitious disorder [CORRECT]
C. Rule out substance/medication-induced conditions
D. Rule out medical conditions that may explain symptoms
Rationale: The DSM-5-TR differential diagnosis hierarchy prioritizes ruling out
malingering and factitious disorder first, as these involve intentional deception that
must be distinguished from genuine psychopathology. Step 2 rules out
substance/medication-induced conditions (Option C), and Step 3 rules out medical
conditions (Option D). Step 4 determines the specific primary mental disorder (Option
A). This hierarchy ensures that organic, intentional, and iatrogenic causes are excluded
before assigning a primary psychiatric diagnosis, following evidence-based diagnostic
reasoning emphasized in Chamberlain NR547 Weeks 5-8.
,Correct Answer: B
Question 2
A 28-year-old patient presents with symptoms of depression, anxiety, and insomnia. The
PMHNP learns the patient recently started taking prednisone for asthma exacerbation.
Which differential diagnosis principle applies?
A. Assign major depressive disorder as the primary diagnosis
B. Rule out substance/medication-induced mental disorder before assigning primary
diagnosis [CORRECT]
C. Assign generalized anxiety disorder and treat with SSRI
D. Order a urine drug screen to rule out illicit substance use
Rationale: Prednisone is a corticosteroid known to cause mood disturbances, anxiety,
and insomnia. Per the DSM-5-TR hierarchy, substance/medication-induced mental
disorders must be ruled out before diagnosing a primary mental disorder. The temporal
relationship between prednisone initiation and symptom onset is critical. Option A and
C prematurely assign primary diagnoses without considering iatrogenic causes. Option
D, while potentially useful, does not address the known medication effect. The PMHNP
should evaluate whether symptoms exceed expected medication effects and whether
they persist after discontinuation.
Correct Answer: B
Question 3
Which screening tool is MOST appropriate for assessing suicide risk in a patient
presenting to the psychiatric emergency department?
A. PHQ-9 (Patient Health Questionnaire-9)
,B. GAD-7 (Generalized Anxiety Disorder-7)
C. C-SSRS (Columbia-Suicide Severity Rating Scale) [CORRECT]
D. AUDIT (Alcohol Use Disorders Identification Test)
Rationale: The C-SSRS is the gold standard for suicide risk assessment, evaluating
suicidal ideation, intent, plan, and behavior. It is validated across clinical settings and
populations. The PHQ-9 (Option A) screens for depression severity with one suicide
item but is not comprehensive for suicide risk. The GAD-7 (Option B) assesses anxiety
severity. The AUDIT (Option D) screens for alcohol use disorders. In NR547 Weeks 5-8,
the C-SSRS is emphasized for systematic suicide risk stratification in differential
diagnosis.
Correct Answer: C
Question 4
The Cultural Formulation Interview (CFI) is used in psychiatric differential diagnosis
primarily to:
A. Determine if the patient meets criteria for a cultural-bound syndrome
B. Assess how cultural identity, explanations, and contextual factors influence symptom
presentation and care [CORRECT]
C. Rule out medical conditions common in the patient's ethnic group
D. Assign a more severe diagnosis based on cultural stressors
Rationale: The DSM-5-TR CFI is a semi-structured interview that explores cultural
identity, conceptualizations of distress, psychosocial stressors, and features of
vulnerability and resilience. It informs culturally responsive diagnosis and treatment
without pathologizing cultural differences. Option A is too narrow; the CFI addresses
more than cultural syndromes. Option C describes medical workup, not cultural
formulation. Option D misrepresents the CFI's purpose—it does not increase severity but
, contextualizes presentation. Cultural formulation is integral to NR547's lifespan and
diversity emphasis.
Correct Answer: B
Question 5
A 65-year-old patient presents with acute confusion, fluctuating attention, and visual
hallucinations developing over 48 hours after hip replacement surgery. Which diagnosis
is most likely?
A. Major neurocognitive disorder (dementia)
B. Delirium [CORRECT]
C. Brief psychotic disorder
D. Schizophrenia
Rationale: Delirium is characterized by acute onset (hours to days), fluctuating attention
and awareness, and additional cognitive disturbances, often precipitated by medical
conditions, surgery, or medications. The postoperative status is a classic risk factor.
Major neurocognitive disorder (Option A) has gradual onset and progressive course
without fluctuation. Brief psychotic disorder (Option C) lacks the attentional disturbance
and medical precipitant. Schizophrenia (Option D) has chronic course with onset
typically in late adolescence/early adulthood. Differentiating delirium from dementia is a
core NR547 Weeks 5-6 competency.
Correct Answer: B
Question 6
Which of the following is NOT a required component for diagnosing substance use
disorder (SUD) according to DSM-5-TR?
