NRNP 6665 FINAL EXAM QUESTION AND ANSWERS -
WALDEN UNIVERSITY
CORE DOMAINS
Psychopharmacology and Neuroscience
Psychiatric Assessment and Differential Diagnosis
Therapeutic Interventions and Psychotherapy
Special Populations and Lifespan Considerations
Professional Practice and Ethical Considerations
INTRODUCTION
This comprehensive final examination is designed for NRNP 6665: PMHNP
Care Across the Lifespan I at Walden University. It assesses advanced
psychiatric-mental health knowledge across psychopharmacology,
assessment, differential diagnosis, therapeutic interventions, and ethical
practice. The examination mirrors the proctored final exam with multiple-
choice and clinical vignette questions, each accompanied by verified
answers and detailed rationales. Emphasis is placed on critical thinking,
mechanism-based reasoning, and the application of DSM-5-TR criteria and
evidence-based guidelines in real-world clinical scenarios.
SECTION ONE: QUESTIONS 1–100
1. A patient is started on a new psychotropic medication. The PMHNP
explains that steady state is typically reached after approximately
how many half-lives?
A) 2 half-lives
B) 3 half-lives
C) 5 half-lives
D) 7 half-lives
C) 5 half-lives
RATIONALE: Steady state is generally achieved after approximately 4–
5 half-lives, when the rate of drug administration equals the rate of
elimination .
,2. A 24-year-old female with no prior psychiatric history presents with
a one-week history of sudden onset of intense anxiety, palpitations,
shortness of breath, and a fear of "going crazy." These episodes
occur without warning and last approximately 15 minutes. She is
worried about having another episode. What is the most appropriate
diagnosis?
A. Generalized Anxiety Disorder
B. Panic Disorder
C. Social Anxiety Disorder
D. Post-Traumatic Stress Disorder
B. Panic Disorder
RATIONALE: Panic Disorder is characterized by recurrent, unexpected
panic attacks with anticipatory anxiety about future attacks. GAD involves
chronic, excessive worry; Social Anxiety Disorder involves fear of scrutiny;
PTSD requires trauma exposure .
3. In assessing a patient for a neurocognitive disorder, which finding
is most indicative of Delirium as opposed to a Major Neurocognitive
Disorder (Dementia)?
A. Gradual onset of memory loss over several years
B. Chronic and progressive decline in executive function
C. Acute onset with a fluctuating level of consciousness and inattention
D. Normal level of consciousness with stable, severe memory deficits
C. Acute onset with a fluctuating level of consciousness and inattention
RATIONALE: Delirium is defined by an acute disturbance in attention
and awareness that develops over hours to days and fluctuates. Dementia
typically has a gradual, progressive course without pronounced fluctuation .
4. A 72-year-old patient with a history of Major Depressive Disorder
has been on a tricyclic antidepressant (TCA) for several months. At a
follow-up visit, she reports new-onset constipation, dry mouth, and
blurred vision. These symptoms are most likely due to the
medication's effect on which neurotransmitter receptor system?
,A. Serotonergic (5-HT)
B. Dopaminergic
C. Histaminergic
D. Cholinergic
D. Cholinergic
RATIONALE: TCAs block muscarinic acetylcholine receptors, producing
anticholinergic effects such as dry mouth, constipation, blurred vision, and
urinary retention .
5. A patient is prescribed a monoamine oxidase inhibitor (MAOI) for
treatment-resistant depression. The PMHNP must provide critical
dietary education to prevent a potentially fatal adverse effect. Which
food substance is most critical for the patient to avoid?
A. Fresh fruits
B. Aged cheese
C. Leafy green vegetables
D. Whole grains
B. Aged cheese
RATIONALE: Aged cheese is high in tyramine. MAOIs inhibit tyramine
metabolism, and ingestion can precipitate a hypertensive crisis .
6. Which laboratory monitoring is essential for a client started on
clozapine?
A. Serum lithium level
B. Absolute neutrophil count (ANC)
C. Liver function tests
D. Serum glucose
B. Absolute neutrophil count (ANC)
RATIONALE: Clozapine carries a risk of severe
neutropenia/agranulocytosis. ANC monitoring is mandated by the
Clozapine REMS program .
7. The duty to protect (Tarasoff duty) refers to:
, A. The obligation to report child abuse
B. The obligation to warn and protect identifiable third parties from a
patient's violent threats
C. The obligation to maintain patient confidentiality at all times
D. The obligation to obtain informed consent
B. The obligation to warn and protect identifiable third parties from a
patient's violent threats
RATIONALE: The Tarasoff duty requires mental health professionals to
breach confidentiality when a patient poses a serious threat to an
identifiable person .
8. A 56-year-old male patient screened for diabetes has a fasting
plasma glucose level of 96 mg/dL. How should the PMHNP interpret
this finding?
A. Normal
B. Prediabetes
C. Diabetes
D. Hypoglycemia
A. Normal
RATIONALE: Fasting plasma glucose <100 mg/dL is normal. 100–125
mg/dL indicates prediabetes; ≥126 mg/dL indicates diabetes.
9. Which medication is a melatonin receptor agonist approved for the
treatment of depression?
A. Fluoxetine
B. Agomelatine
C. Bupropion
D. Venlafaxine
B. Agomelatine
RATIONALE: Agomelatine (Valdoxan) is a melatonin receptor agonist
(MT1/MT2) and 5-HT2C antagonist approved for major depressive disorder
.
WALDEN UNIVERSITY
CORE DOMAINS
Psychopharmacology and Neuroscience
Psychiatric Assessment and Differential Diagnosis
Therapeutic Interventions and Psychotherapy
Special Populations and Lifespan Considerations
Professional Practice and Ethical Considerations
INTRODUCTION
This comprehensive final examination is designed for NRNP 6665: PMHNP
Care Across the Lifespan I at Walden University. It assesses advanced
psychiatric-mental health knowledge across psychopharmacology,
assessment, differential diagnosis, therapeutic interventions, and ethical
practice. The examination mirrors the proctored final exam with multiple-
choice and clinical vignette questions, each accompanied by verified
answers and detailed rationales. Emphasis is placed on critical thinking,
mechanism-based reasoning, and the application of DSM-5-TR criteria and
evidence-based guidelines in real-world clinical scenarios.
SECTION ONE: QUESTIONS 1–100
1. A patient is started on a new psychotropic medication. The PMHNP
explains that steady state is typically reached after approximately
how many half-lives?
A) 2 half-lives
B) 3 half-lives
C) 5 half-lives
D) 7 half-lives
C) 5 half-lives
RATIONALE: Steady state is generally achieved after approximately 4–
5 half-lives, when the rate of drug administration equals the rate of
elimination .
,2. A 24-year-old female with no prior psychiatric history presents with
a one-week history of sudden onset of intense anxiety, palpitations,
shortness of breath, and a fear of "going crazy." These episodes
occur without warning and last approximately 15 minutes. She is
worried about having another episode. What is the most appropriate
diagnosis?
A. Generalized Anxiety Disorder
B. Panic Disorder
C. Social Anxiety Disorder
D. Post-Traumatic Stress Disorder
B. Panic Disorder
RATIONALE: Panic Disorder is characterized by recurrent, unexpected
panic attacks with anticipatory anxiety about future attacks. GAD involves
chronic, excessive worry; Social Anxiety Disorder involves fear of scrutiny;
PTSD requires trauma exposure .
3. In assessing a patient for a neurocognitive disorder, which finding
is most indicative of Delirium as opposed to a Major Neurocognitive
Disorder (Dementia)?
A. Gradual onset of memory loss over several years
B. Chronic and progressive decline in executive function
C. Acute onset with a fluctuating level of consciousness and inattention
D. Normal level of consciousness with stable, severe memory deficits
C. Acute onset with a fluctuating level of consciousness and inattention
RATIONALE: Delirium is defined by an acute disturbance in attention
and awareness that develops over hours to days and fluctuates. Dementia
typically has a gradual, progressive course without pronounced fluctuation .
4. A 72-year-old patient with a history of Major Depressive Disorder
has been on a tricyclic antidepressant (TCA) for several months. At a
follow-up visit, she reports new-onset constipation, dry mouth, and
blurred vision. These symptoms are most likely due to the
medication's effect on which neurotransmitter receptor system?
,A. Serotonergic (5-HT)
B. Dopaminergic
C. Histaminergic
D. Cholinergic
D. Cholinergic
RATIONALE: TCAs block muscarinic acetylcholine receptors, producing
anticholinergic effects such as dry mouth, constipation, blurred vision, and
urinary retention .
5. A patient is prescribed a monoamine oxidase inhibitor (MAOI) for
treatment-resistant depression. The PMHNP must provide critical
dietary education to prevent a potentially fatal adverse effect. Which
food substance is most critical for the patient to avoid?
A. Fresh fruits
B. Aged cheese
C. Leafy green vegetables
D. Whole grains
B. Aged cheese
RATIONALE: Aged cheese is high in tyramine. MAOIs inhibit tyramine
metabolism, and ingestion can precipitate a hypertensive crisis .
6. Which laboratory monitoring is essential for a client started on
clozapine?
A. Serum lithium level
B. Absolute neutrophil count (ANC)
C. Liver function tests
D. Serum glucose
B. Absolute neutrophil count (ANC)
RATIONALE: Clozapine carries a risk of severe
neutropenia/agranulocytosis. ANC monitoring is mandated by the
Clozapine REMS program .
7. The duty to protect (Tarasoff duty) refers to:
, A. The obligation to report child abuse
B. The obligation to warn and protect identifiable third parties from a
patient's violent threats
C. The obligation to maintain patient confidentiality at all times
D. The obligation to obtain informed consent
B. The obligation to warn and protect identifiable third parties from a
patient's violent threats
RATIONALE: The Tarasoff duty requires mental health professionals to
breach confidentiality when a patient poses a serious threat to an
identifiable person .
8. A 56-year-old male patient screened for diabetes has a fasting
plasma glucose level of 96 mg/dL. How should the PMHNP interpret
this finding?
A. Normal
B. Prediabetes
C. Diabetes
D. Hypoglycemia
A. Normal
RATIONALE: Fasting plasma glucose <100 mg/dL is normal. 100–125
mg/dL indicates prediabetes; ≥126 mg/dL indicates diabetes.
9. Which medication is a melatonin receptor agonist approved for the
treatment of depression?
A. Fluoxetine
B. Agomelatine
C. Bupropion
D. Venlafaxine
B. Agomelatine
RATIONALE: Agomelatine (Valdoxan) is a melatonin receptor agonist
(MT1/MT2) and 5-HT2C antagonist approved for major depressive disorder
.
