NRNP 6665 Midterm Exam with Questions and
Answers/Plus a Rationale Updated 2026 A+/Instant
Download PDF
EXAM COVERAGE
1. Psychopharmacology Principles and Pharmacokinetics
2. Neurobiology of Psychiatric Disorders
3. Differential Diagnosis and Diagnostic Criteria (DSM-5-TR)
4. Psychiatric Interviewing and Assessment Techniques
5. Therapeutic Communication and Psychotherapy Modalities
6. Legal and Ethical Standards in Psychiatric Mental Health Practice
7. Cultural Competence and Health Equity
8. Management of Anxiety and Mood Disorders
9. Management of Psychotic Disorders
10. Pediatric and Geriatric Psychopharmacology Considerations
1. A 45-year-old patient with a history of bipolar I disorder presents with a new onset of tremors,
increased thirst, and polyuria after a recent dose increase of lithium carbonate. Laboratory results
indicate a serum lithium level of 1.4 mEq/L. What is the most appropriate initial action?
A. Add a beta-blocker to manage the tremor.
B. Discontinue the medication and initiate an antipsychotic.
, C. Decrease the lithium dosage and assess renal function and hydration.
D. Continue the current dose and monitor levels in one week.
CORRECT ANSWER : C
Rationale: A lithium level of 1.4 mEq/L is at the high end of the therapeutic range or
approaching toxic levels, explaining the emergence of side effects. The priority is to reduce the
dosage to restore safety while evaluating the impact of the drug on renal clearance and fluid
status. Beta-blockers are used for benign lithium-induced tremors but are inappropriate here
due to the toxicity risk, and abrupt discontinuation is not required if the level can be safely
adjusted.
2. A patient diagnosed with major depressive disorder fails to respond to an adequate trial of
fluoxetine. The PMHNP considers switching to venlafaxine. What is the essential clinical
consideration regarding this transition?
A. Fluoxetine must be discontinued immediately to prevent serotonin syndrome.
B. A washout period may be necessary if the patient exhibits high sensitivity to serotonergic
agents.
C. Venlafaxine should be started at the same dose as fluoxetine.
D. Venlafaxine provides superior efficacy regardless of the patient's anxiety profile.
CORRECT ANSWER : B
Rationale: While fluoxetine has a long half-life, switching to an SNRI like venlafaxine requires
careful titration. A washout period or careful cross-tapering is essential if there is a concern for
serotonergic overstimulation, as switching strategies vary by drug profile. Immediate
discontinuation of fluoxetine is not always required due to its long half-life, and starting doses
for venlafaxine must be based on clinical titration, not current fluoxetine dosing.
3. A 28-year-old female patient reports intrusive thoughts and compulsive hand-washing that
interferes with her ability to maintain employment. She is currently breastfeeding. Which
medication is the most evidence-based choice for this patient?
A. Paroxetine
B. Sertraline
C. Fluvoxamine
D. Fluoxetine
, CORRECT ANSWER : B
Rationale: Sertraline is preferred for breastfeeding mothers due to its low concentration in
breast milk and minimal transfer to the infant. Paroxetine, while effective, has potential cardiac
concerns, and fluoxetine has a long half-life that may lead to accumulation in the infant.
Fluvoxamine is effective for OCD but lacks the extensive safety data in breastfeeding
populations that sertraline possesses.
4. A patient with schizophrenia stabilized on olanzapine presents with a 15-pound weight gain,
elevated fasting glucose, and increased triglycerides over three months. What is the
recommended management strategy?
A. Initiate metformin and maintain the current olanzapine dose.
B. Add a second-generation antipsychotic to counteract the metabolic side effects.
C. Switch the patient to a metabolic-neutral agent like aripiprazole or ziprasidone.
D. Increase exercise frequency and provide dietary counseling only.
CORRECT ANSWER : C
Rationale: Olanzapine carries a high risk for metabolic syndrome, including weight gain and
dysglycemia. Switching to an agent with a lower metabolic profile is the standard of care for
patients experiencing significant metabolic dysregulation. While metformin may be added, the
primary intervention for a drug-induced metabolic shift is changing the offending agent when
clinical stabilization allows.
5. A 62-year-old patient with chronic stable angina and generalized anxiety disorder requires
treatment. Which medication is contraindicated or requires extreme caution due to the patient's
cardiac status?
A. Venlafaxine
B. Escitalopram
C. Buspirone
D. Hydroxyzine
CORRECT ANSWER : A
Rationale: Venlafaxine, particularly at higher doses, can increase blood pressure and heart rate,
posing a risk to patients with preexisting cardiac conditions like stable angina. Escitalopram and
buspirone are generally considered safe for cardiac patients, and hydroxyzine is an
, antihistamine with fewer cardiovascular impacts. Therefore, the SNRI profile of venlafaxine
requires significant caution in this scenario.
6. A 34-year-old male with treatment-resistant depression is being evaluated for the initiation of
tricyclic antidepressants (TCAs). Which laboratory screening is mandatory prior to initiating this
class of medication?
A. Complete blood count (CBC)
B. Electrocardiogram (ECG)
C. Thyroid-stimulating hormone (TSH)
D. Fasting lipid profile
CORRECT ANSWER : B
Rationale: TCAs possess significant anticholinergic effects and quinidine-like properties that can
prolong the QT interval and potentially induce cardiac arrhythmias, particularly in patients with
underlying cardiac vulnerabilities. An ECG is essential to screen for baseline conduction
abnormalities. While CBC and TSH are standard components of a general psychiatric workup,
the ECG is the specific safety requirement for TCA therapy.
7. A patient presents with symptoms of akathisia after being started on haloperidol. Which
intervention is the most appropriate first-line pharmacologic management?
A. Increase the dose of haloperidol to mask the side effects.
B. Administer a beta-blocker such as propranolol.
C. Switch to a high-potency typical antipsychotic.
D. Add an anticholinergic agent such as benztropine.
CORRECT ANSWER : B
Rationale: Akathisia, characterized by intense inner restlessness, is a common extrapyramidal
side effect of high-potency antipsychotics. Propranolol is the first-line treatment for drug-
induced akathisia. Anticholinergics like benztropine are more effective for parkinsonian
symptoms and dystonia but are generally less effective for the subjective restlessness of
akathisia.
8. When assessing a patient with suspected bipolar disorder, the PMHNP identifies a high risk for
switching into mania. Which strategy best minimizes the risk of treatment-emergent affective
switch (TEAS)?
Answers/Plus a Rationale Updated 2026 A+/Instant
Download PDF
EXAM COVERAGE
1. Psychopharmacology Principles and Pharmacokinetics
2. Neurobiology of Psychiatric Disorders
3. Differential Diagnosis and Diagnostic Criteria (DSM-5-TR)
4. Psychiatric Interviewing and Assessment Techniques
5. Therapeutic Communication and Psychotherapy Modalities
6. Legal and Ethical Standards in Psychiatric Mental Health Practice
7. Cultural Competence and Health Equity
8. Management of Anxiety and Mood Disorders
9. Management of Psychotic Disorders
10. Pediatric and Geriatric Psychopharmacology Considerations
1. A 45-year-old patient with a history of bipolar I disorder presents with a new onset of tremors,
increased thirst, and polyuria after a recent dose increase of lithium carbonate. Laboratory results
indicate a serum lithium level of 1.4 mEq/L. What is the most appropriate initial action?
A. Add a beta-blocker to manage the tremor.
B. Discontinue the medication and initiate an antipsychotic.
, C. Decrease the lithium dosage and assess renal function and hydration.
D. Continue the current dose and monitor levels in one week.
CORRECT ANSWER : C
Rationale: A lithium level of 1.4 mEq/L is at the high end of the therapeutic range or
approaching toxic levels, explaining the emergence of side effects. The priority is to reduce the
dosage to restore safety while evaluating the impact of the drug on renal clearance and fluid
status. Beta-blockers are used for benign lithium-induced tremors but are inappropriate here
due to the toxicity risk, and abrupt discontinuation is not required if the level can be safely
adjusted.
2. A patient diagnosed with major depressive disorder fails to respond to an adequate trial of
fluoxetine. The PMHNP considers switching to venlafaxine. What is the essential clinical
consideration regarding this transition?
A. Fluoxetine must be discontinued immediately to prevent serotonin syndrome.
B. A washout period may be necessary if the patient exhibits high sensitivity to serotonergic
agents.
C. Venlafaxine should be started at the same dose as fluoxetine.
D. Venlafaxine provides superior efficacy regardless of the patient's anxiety profile.
CORRECT ANSWER : B
Rationale: While fluoxetine has a long half-life, switching to an SNRI like venlafaxine requires
careful titration. A washout period or careful cross-tapering is essential if there is a concern for
serotonergic overstimulation, as switching strategies vary by drug profile. Immediate
discontinuation of fluoxetine is not always required due to its long half-life, and starting doses
for venlafaxine must be based on clinical titration, not current fluoxetine dosing.
3. A 28-year-old female patient reports intrusive thoughts and compulsive hand-washing that
interferes with her ability to maintain employment. She is currently breastfeeding. Which
medication is the most evidence-based choice for this patient?
A. Paroxetine
B. Sertraline
C. Fluvoxamine
D. Fluoxetine
, CORRECT ANSWER : B
Rationale: Sertraline is preferred for breastfeeding mothers due to its low concentration in
breast milk and minimal transfer to the infant. Paroxetine, while effective, has potential cardiac
concerns, and fluoxetine has a long half-life that may lead to accumulation in the infant.
Fluvoxamine is effective for OCD but lacks the extensive safety data in breastfeeding
populations that sertraline possesses.
4. A patient with schizophrenia stabilized on olanzapine presents with a 15-pound weight gain,
elevated fasting glucose, and increased triglycerides over three months. What is the
recommended management strategy?
A. Initiate metformin and maintain the current olanzapine dose.
B. Add a second-generation antipsychotic to counteract the metabolic side effects.
C. Switch the patient to a metabolic-neutral agent like aripiprazole or ziprasidone.
D. Increase exercise frequency and provide dietary counseling only.
CORRECT ANSWER : C
Rationale: Olanzapine carries a high risk for metabolic syndrome, including weight gain and
dysglycemia. Switching to an agent with a lower metabolic profile is the standard of care for
patients experiencing significant metabolic dysregulation. While metformin may be added, the
primary intervention for a drug-induced metabolic shift is changing the offending agent when
clinical stabilization allows.
5. A 62-year-old patient with chronic stable angina and generalized anxiety disorder requires
treatment. Which medication is contraindicated or requires extreme caution due to the patient's
cardiac status?
A. Venlafaxine
B. Escitalopram
C. Buspirone
D. Hydroxyzine
CORRECT ANSWER : A
Rationale: Venlafaxine, particularly at higher doses, can increase blood pressure and heart rate,
posing a risk to patients with preexisting cardiac conditions like stable angina. Escitalopram and
buspirone are generally considered safe for cardiac patients, and hydroxyzine is an
, antihistamine with fewer cardiovascular impacts. Therefore, the SNRI profile of venlafaxine
requires significant caution in this scenario.
6. A 34-year-old male with treatment-resistant depression is being evaluated for the initiation of
tricyclic antidepressants (TCAs). Which laboratory screening is mandatory prior to initiating this
class of medication?
A. Complete blood count (CBC)
B. Electrocardiogram (ECG)
C. Thyroid-stimulating hormone (TSH)
D. Fasting lipid profile
CORRECT ANSWER : B
Rationale: TCAs possess significant anticholinergic effects and quinidine-like properties that can
prolong the QT interval and potentially induce cardiac arrhythmias, particularly in patients with
underlying cardiac vulnerabilities. An ECG is essential to screen for baseline conduction
abnormalities. While CBC and TSH are standard components of a general psychiatric workup,
the ECG is the specific safety requirement for TCA therapy.
7. A patient presents with symptoms of akathisia after being started on haloperidol. Which
intervention is the most appropriate first-line pharmacologic management?
A. Increase the dose of haloperidol to mask the side effects.
B. Administer a beta-blocker such as propranolol.
C. Switch to a high-potency typical antipsychotic.
D. Add an anticholinergic agent such as benztropine.
CORRECT ANSWER : B
Rationale: Akathisia, characterized by intense inner restlessness, is a common extrapyramidal
side effect of high-potency antipsychotics. Propranolol is the first-line treatment for drug-
induced akathisia. Anticholinergics like benztropine are more effective for parkinsonian
symptoms and dystonia but are generally less effective for the subjective restlessness of
akathisia.
8. When assessing a patient with suspected bipolar disorder, the PMHNP identifies a high risk for
switching into mania. Which strategy best minimizes the risk of treatment-emergent affective
switch (TEAS)?
