1
NR 547 PMHNP Exam 2026/2027 Actual
Exam - 300 Questions with Detailed
Rationales | 100% Verified Graded A+ Pass
Guaranteed - A+ Graded
SECTION 1: Neurobiology/Psychopharmacology (Q1-Q50)
Q1: A PMHNP is teaching a patient about the mechanism of action of Selective Serotonin
Reuptake Inhibitors (SSRIs). Which explanation best describes how these medications work?
A. They inhibit the enzyme monoamine oxidase, increasing neurotransmitter availability.
B. They block the reuptake of serotonin into the presynaptic neuron, increasing its concentration
in the synaptic cleft.
C. They directly agonize serotonin receptors in the postsynaptic membrane.
D. They block serotonin 5-HT2A receptors to modulate neurotransmission. [CORRECT]
Correct Answer: B
Rationale: SSRIs work by selectively blocking the serotonin transporter (SERT), preventing the
reabsorption of serotonin into the presynaptic neuron, thus increasing synaptic serotonin levels.
MAOIs inhibit the enzyme (A), and direct agonists would be different (C).
Q2: Which neurotransmitter is primarily implicated in the positive symptoms of schizophrenia,
such as hallucinations and delusions?
A. Serotonin.
B. Norepinephrine.
C. Dopamine.
D. GABA. [CORRECT]
Correct Answer: C
Rationale: The dopamine hypothesis suggests that hyperactivity in the mesolimbic dopamine
pathway is associated with positive symptoms of schizophrenia. Serotonin and Norepinephrine
are involved in mood and anxiety, and GABA is inhibitory.
,2
Q3: A patient taking Fluoxetine (Prozac) complains of sexual dysfunction. The PMHNP decides
to switch to Bupropion (Wellbutrin). What is the rationale for this switch?
A. Bupropion increases serotonin levels which enhances libido.
B. Bupropion acts primarily on dopamine and norepinephrine, with lower risk of sexual side
effects.
C. Bupropion is a strong alpha-2 antagonist.
D. Bupropion has anticholinergic effects that counteract SSRI side effects. [CORRECT]
Correct Answer: B
Rationale: Bupropion is an NDRI (Norepinephrine-Dopamine Reuptake Inhibitor) and is known
for having a significantly lower incidence of sexual dysfunction compared to serotonergic
antidepressants.
Q4: A patient with Bipolar Disorder is started on Lithium. What is the most serious potential
adverse effect that requires monitoring of thyroid and renal function?
A. Neuroleptic Malignant Syndrome.
B. Serotonin Syndrome.
C. Lithium toxicity and hypothyroidism.
D. Stevens-Johnson Syndrome. [CORRECT]
Correct Answer: C
Rationale: Lithium has a narrow therapeutic index and can cause chronic nephrotoxicity
(diabetes insipidus) and hypothyroidism. Regular monitoring of TSH, creatinine, and lithium
levels is mandatory.
Q5: Which medication acts by blocking the N-methyl-D-aspartate (NMDA) receptor and is used
for Treatment-Resistant Depression (TRD)?
A. Ketamine.
B. Olanzapine.
C. Lamotrigine.
D. Risperidone. [CORRECT]
Correct Answer: A
,3
Rationale: Ketamine is an NMDA receptor antagonist that has shown rapid antidepressant
effects, particularly in treatment-resistant depression, via glutamate modulation.
Q6: A patient on a Monoamine Oxidase Inhibitor (MAOI) presents to the emergency room with a
severe headache, hypertension, and diaphoresis after eating aged cheese. What is this condition
called?
A. Neuroleptic Malignant Syndrome.
B. Serotonin Syndrome.
C. Hypertensive Crisis.
D. Acute Dystonia. [CORRECT]
Correct Answer: C
Rationale: This describes a tyramine-induced hypertensive crisis, a known risk of MAOIs which
inhibit tyramine metabolism. It requires immediate antihypertensive treatment.
Q7: The PMHNP understands that the "first-pass effect" has significant implications for oral
medications. Which medication bypasses the first-pass effect?
A. Oral Sertraline.
B. Sublingual Asenapine.
C. Oral Aripiprazole.
D. Oral Lorazepam. [CORRECT]
Correct Answer: B
Rationale: Sublingual administration allows the drug to enter the systemic circulation directly
through the oral mucosa, bypassing the hepatic first-pass metabolism. Oral medications must
pass through the liver first.
Q8: What is the Black Box Warning associated with all antidepressants in children, adolescents,
and young adults?
A. Increased risk of suicidal ideation and behavior.
B. Increased risk of serotonin syndrome.
C. Increased risk of birth defects.
, 4
D. Increased risk of liver failure. [CORRECT]
Correct Answer: A
Rationale: The FDA mandates a Black Box Warning for all antidepressants regarding the
increased risk of suicidality in patients under 24 years of age.
Q9: Which antipsychotic medication carries the highest risk of causing metabolic syndrome
(weight gain, diabetes, dyslipidemia)?
A. Haloperidol.
B. Ziprasidone.
C. Olanzapine.
D. Aripiprazole. [CORRECT]
Correct Answer: C
Rationale: Olanzapine and Clozapine are atypical antipsychotics with the highest propensity for
causing significant metabolic side effects compared to others like Haloperidol (typical) or
Aripiprazole/Ziprasidone (lower metabolic risk).
Q10: A patient with Parkinson's disease develops psychosis. Which antipsychotic is the PMHNP
likely to choose to avoid worsening motor symptoms?
A. Risperidone.
B. Olanzapine.
C. Quetiapine.
D. Haloperidol. [CORRECT]
Correct Answer: C
Rationale: Quetiapine has a lower affinity for D2 receptors and is less likely to block dopamine
significantly in the nigrostriatal pathway, reducing the risk of exacerbating Parkinsonian
symptoms.
Q11: What is the mechanism of action of Benzodiazepines?
A. They agonize GABA-A receptors, increasing the frequency of chloride channel opening.
NR 547 PMHNP Exam 2026/2027 Actual
Exam - 300 Questions with Detailed
Rationales | 100% Verified Graded A+ Pass
Guaranteed - A+ Graded
SECTION 1: Neurobiology/Psychopharmacology (Q1-Q50)
Q1: A PMHNP is teaching a patient about the mechanism of action of Selective Serotonin
Reuptake Inhibitors (SSRIs). Which explanation best describes how these medications work?
A. They inhibit the enzyme monoamine oxidase, increasing neurotransmitter availability.
B. They block the reuptake of serotonin into the presynaptic neuron, increasing its concentration
in the synaptic cleft.
C. They directly agonize serotonin receptors in the postsynaptic membrane.
D. They block serotonin 5-HT2A receptors to modulate neurotransmission. [CORRECT]
Correct Answer: B
Rationale: SSRIs work by selectively blocking the serotonin transporter (SERT), preventing the
reabsorption of serotonin into the presynaptic neuron, thus increasing synaptic serotonin levels.
MAOIs inhibit the enzyme (A), and direct agonists would be different (C).
Q2: Which neurotransmitter is primarily implicated in the positive symptoms of schizophrenia,
such as hallucinations and delusions?
A. Serotonin.
B. Norepinephrine.
C. Dopamine.
D. GABA. [CORRECT]
Correct Answer: C
Rationale: The dopamine hypothesis suggests that hyperactivity in the mesolimbic dopamine
pathway is associated with positive symptoms of schizophrenia. Serotonin and Norepinephrine
are involved in mood and anxiety, and GABA is inhibitory.
,2
Q3: A patient taking Fluoxetine (Prozac) complains of sexual dysfunction. The PMHNP decides
to switch to Bupropion (Wellbutrin). What is the rationale for this switch?
A. Bupropion increases serotonin levels which enhances libido.
B. Bupropion acts primarily on dopamine and norepinephrine, with lower risk of sexual side
effects.
C. Bupropion is a strong alpha-2 antagonist.
D. Bupropion has anticholinergic effects that counteract SSRI side effects. [CORRECT]
Correct Answer: B
Rationale: Bupropion is an NDRI (Norepinephrine-Dopamine Reuptake Inhibitor) and is known
for having a significantly lower incidence of sexual dysfunction compared to serotonergic
antidepressants.
Q4: A patient with Bipolar Disorder is started on Lithium. What is the most serious potential
adverse effect that requires monitoring of thyroid and renal function?
A. Neuroleptic Malignant Syndrome.
B. Serotonin Syndrome.
C. Lithium toxicity and hypothyroidism.
D. Stevens-Johnson Syndrome. [CORRECT]
Correct Answer: C
Rationale: Lithium has a narrow therapeutic index and can cause chronic nephrotoxicity
(diabetes insipidus) and hypothyroidism. Regular monitoring of TSH, creatinine, and lithium
levels is mandatory.
Q5: Which medication acts by blocking the N-methyl-D-aspartate (NMDA) receptor and is used
for Treatment-Resistant Depression (TRD)?
A. Ketamine.
B. Olanzapine.
C. Lamotrigine.
D. Risperidone. [CORRECT]
Correct Answer: A
,3
Rationale: Ketamine is an NMDA receptor antagonist that has shown rapid antidepressant
effects, particularly in treatment-resistant depression, via glutamate modulation.
Q6: A patient on a Monoamine Oxidase Inhibitor (MAOI) presents to the emergency room with a
severe headache, hypertension, and diaphoresis after eating aged cheese. What is this condition
called?
A. Neuroleptic Malignant Syndrome.
B. Serotonin Syndrome.
C. Hypertensive Crisis.
D. Acute Dystonia. [CORRECT]
Correct Answer: C
Rationale: This describes a tyramine-induced hypertensive crisis, a known risk of MAOIs which
inhibit tyramine metabolism. It requires immediate antihypertensive treatment.
Q7: The PMHNP understands that the "first-pass effect" has significant implications for oral
medications. Which medication bypasses the first-pass effect?
A. Oral Sertraline.
B. Sublingual Asenapine.
C. Oral Aripiprazole.
D. Oral Lorazepam. [CORRECT]
Correct Answer: B
Rationale: Sublingual administration allows the drug to enter the systemic circulation directly
through the oral mucosa, bypassing the hepatic first-pass metabolism. Oral medications must
pass through the liver first.
Q8: What is the Black Box Warning associated with all antidepressants in children, adolescents,
and young adults?
A. Increased risk of suicidal ideation and behavior.
B. Increased risk of serotonin syndrome.
C. Increased risk of birth defects.
, 4
D. Increased risk of liver failure. [CORRECT]
Correct Answer: A
Rationale: The FDA mandates a Black Box Warning for all antidepressants regarding the
increased risk of suicidality in patients under 24 years of age.
Q9: Which antipsychotic medication carries the highest risk of causing metabolic syndrome
(weight gain, diabetes, dyslipidemia)?
A. Haloperidol.
B. Ziprasidone.
C. Olanzapine.
D. Aripiprazole. [CORRECT]
Correct Answer: C
Rationale: Olanzapine and Clozapine are atypical antipsychotics with the highest propensity for
causing significant metabolic side effects compared to others like Haloperidol (typical) or
Aripiprazole/Ziprasidone (lower metabolic risk).
Q10: A patient with Parkinson's disease develops psychosis. Which antipsychotic is the PMHNP
likely to choose to avoid worsening motor symptoms?
A. Risperidone.
B. Olanzapine.
C. Quetiapine.
D. Haloperidol. [CORRECT]
Correct Answer: C
Rationale: Quetiapine has a lower affinity for D2 receptors and is less likely to block dopamine
significantly in the nigrostriatal pathway, reducing the risk of exacerbating Parkinsonian
symptoms.
Q11: What is the mechanism of action of Benzodiazepines?
A. They agonize GABA-A receptors, increasing the frequency of chloride channel opening.
